crop-chem-docs/corpus/epa_ppls/7969-238.md

# CLEARMAX HERBICIDE

- EPA Reg No: **7969-238**
- Registrant: BASF AGRICULTURAL SOLUTIONS US, LLC
- Signal word: Caution
- Active ingredients: MCPA, 2-ethylhexyl ester (67.9%); Imazamox (12.1%)
- Label accepted: 2022-10-21
- Source PDF: https://www3.epa.gov/pesticides/chem_search/ppls/007969-00238-20221021.pdf

---
UNITED STATES ENVIRONMENTAL PROTECTION AGENCY 
 WASHINGTON, DC 20460 
 
 
 
OFFICE OF CHEMICAL SAFETY 
AND POLLUTION PREVENTION 
 October 21, 2022 
 
Christa Ellers-Kirk 
Federal Registration Manager 
BASF Corporation 
26 Davis Drive 
Research Triangle Park, NC 27709-3528 
 
Subject: Registration Review Label Mitigation for Imazamox and MCPA 
 Product Name: CLEARMAX HERBICIDE 
 EPA Registration Number: 7969-238 
 Application Dates: 4/24/2020 and 10/17/2022 
Decision Numbers: 564351 and 588250 
 
Dear Christa Ellers-Kirk: 
 
The Agency, in accordance with the Federal Insecticide, Fungicide and Rodenticide Act 
(FIFRA), as amended, has completed reviewing all the information submitted with your 
application to support the Registration Review of the above referenced product in connection 
with the Imazamox and MCPA Interim Decisions, and has concluded that your submission is 
acceptable. The label referred to above, submitted in connection with registration under FIFRA, 
as amended, is acceptable. 
 
Should you wish to add/retain a reference to the company’s website on your label, then please be 
aware that the website becomes labeling under the Federal Insecticide Fungicide and Rodenticide 
Act and is subject to review by the Agency. If the website is false or misleading, the product 
would be misbranded and unlawful to sell or distribute under FIFRA section 12(a)(1)(E). 40 
CFR 156.10(a)(5) list examples of statements EPA may consider false or misleading. In addition, 
regardless of whether a website is referenced on your product’s label, claims made on the 
website may not substantially differ from those claims approved through the registration process. 
Therefore, should the Agency find or if it is brought to our attention that a website contains false 
or misleading statements or claims substantially differing from the EPA approved registration, 
the website will be referred to the EPA’s Office of Enforcement and Compliance. 
 
A stamped copy of your labeling is enclosed for your records. This labeling supersedes 
all previously accepted labeling. You must submit one copy of the final printed labeling 
before you release the product for shipment with the new labeling. In accordance with 40 
CFR 152.130(c), you may distribute or sell this product under the previously approved 
labeling for 12 months from the date of this letter. After 12 months, you may only 
distribute or sell this product if it bears this new revised labeling or subsequently 
approved labeling. “To distribute or sell” is defined under FIFRA section 2(gg) and its 
implementing regulation at 40 CFR 152.3.

Page 2 of 2 
EPA Reg. No. 7969-238 
Decision No. 564351 
 
If you have any questions about this letter, please contact Quinn Gavin by phone at 202-566-
2284, or via email at gavin.quinn@epa.gov. 
 
 Sincerely, 
 
 
 Linda Arrington, Branch Chief 
 Risk Management and Implementation Branch 4 
 Pesticide Re-Evaluation Division 
 Office of Pesticide Programs 
 
Enclosure: Stamped label

Postemergence herbicide for use on Clearfield® wheat
Apply only on Clearfield wheat varieties
Active Ingredient:
ammonium salt of imazamox 2-[4,5-dihydro-4-methyl-
4-(1-methylethyl)-5-oxo-1H-imidazol-2-yl]-5-(methoxymethyl)-
3-pyridinecarboxylic acid* ................................ 12.1%
Other Ingredients: .................................... 87.9%
Total: ............................................... 100.0%
* Equivalent to 11.4% 2-[4,5-dihydro-4-methyl-4-(1-methylethyl)-5-oxo-1H-
imidazol-2-yl]-5-(methoxymethyl)-3-pyridinecarboxylic acid
1 gallon contains 1.0 pound of active ingredient (imazamox) as the free acid.
EPA Reg. No. 7969-238 EPA Est. No.
KEEP OUT OF REACH OF CHILDREN
CAUTION/PRECAUCION
Si usted no entiende la etiqueta, busque a alguien para que se la explique a usted en
detalle. (If you do not understand this label, find someone to explain it to you in detail.)
FIRST AID: If on skin or clothing: Take off contaminated clothing. Rinse skin immediately with plenty of water for 15 to 
20 minutes. Call a poison control center or doctor for treatment advice.If in eyes: Hold eyes open and rinse slowly and gently 
with water for 15 to 20 minutes. Remove contact lenses, if present, after first 5 minutes; then continue rinsing eye. Call a poison 
control center or doctor for treatment advice. If inhaled: Move person to fresh air. If person is not breathing, call 911 or an 
ambulance; then give artificial respiration, preferably mouth to mouth if possible. Call a poison control center or doctor for further 
treatment advice. Have the product container or label with you when calling a poison control center or doctor or going for 
treatment. In case of an emergency endangering life or property involving this product, call BASF Corporation for 
emergency medical treatment information, day or night 1-800-832-HELP (4357).
See full label for complete Precautionary Statements, Directions For Use,
Conditions of Sale and Warranty, and state-specific crop and/or use site restrictions.
Net Contents:
BASF Corporation
26 Davis Drive, Research Triangle Park, NC 27709
Imazamox Group 2 Herbicide
MCPA-2-ethylhexyl ester Group 4 Herbicide
Postemergence herbicide for use on Clearfield® wheat
Apply only on Clearfield wheat varieties
Active Ingredient:
2-ethylhexyl ester of (4-chloro-2-methylphenoxy)acetic acid*...... 67.9%
Other Ingredients: .................................... 32.1%
Total: ............................................... 100.0%
Contains petroleum distillates
* (4-chloro-2-methylphenoxy)acetic acid equivalent 44.1% by weight or 3.7 pounds
MCPA per gallon
EPA Reg. No. 7969-238 EPA Est. No.
KEEP OUT OF REACH OF CHILDREN
CAUTION/PRECAUCION
Si usted no entiende la etiqueta, busque a alguien para que se la explique a usted en
detalle. (If you do not understand this label, find someone to explain it to you in detail.)
FIRST AID: If swallowed: Immediately call poison control center or doctor for treatment advice. DO NOT induce vomiting 
unless told to do so by the poison control center or doctor. DO NOT give any liquid to the person. DO NOT give anything by 
mouth to an unconscious person. If on skin or clothing: Take off contaminated clothing. Rinse skin immediately with plenty of 
water for 15 to 20 minutes. Call a poison control center or doctor for treatment advice. If in eyes: Hold eyes open and rinse 
slowly and gently with water for 15 to 20 minutes. Remove contact lenses, if present, after first 5 minutes; then continue rinsing 
eye. Call a poison control center or doctor for treatment advice. If inhaled: Move person to fresh air. If person is not breathing, 
call 911 or an ambulance; then give artificial respiration, preferably mouth to mouth if possible. Call a poison control center or 
doctor for further treatment advice. HOTLINE NUMBER: Have the product container or label with you when calling a poison 
control center or doctor, or going for treatment. In case of an emergency endangering life or property involving this prod-
uct, call BASF Corporation for emergency medical treatment information, day or night 1-800-832-HELP (4357).
See full label for complete Precautionary Statements, Directions For Use,
Conditions of Sale and Warranty, and state-specific crop and/or use site restrictions.
Net Contents:
BASF Corporation
26 Davis Drive, Research Triangle Park, NC 27709
Oct 21, 2022
7969-238

2
Clearmax® herbicide 
First Aid and Precautionary Statements 
for ammonium salt of imazamox
FIRST AID
If on skin or 
clothing
• Take off contaminated clothing.
• Rinse skin immediately with plenty of water for 15 to 
20 minutes.
• Call a poison control center or doctor for treatment advice.
If in eyes • Hold eyes open and rinse slowly and gently with water for 
15 to 20 minutes.
• Remove contact lenses, if present, after first 5 minutes; 
then continue rinsing eye.
• Call a poison control center or doctor for treatment advice.
If inhaled • Move person to fresh air.
• If person is not breathing, call 911 or an ambulance; then 
give artificial respiration, preferably mouth to mouth if 
possible.
• Call a poison control center or doctor for further treatment 
advice.
Have the product container or label with you when calling a poison control 
center or doctor or going for treatment. In case of an emergency endangering 
life or property involving this product, call BASF Corporation for emergency 
medical treatment information, day or night 1-800-832-HELP (4357).
Clearmax® herbicide 
First Aid and Precautionary Statements 
for 2-ethylhexyl ester of MCPA
FIRST AID
If swallowed • Immediately call poison control center or doctor for treat-
ment advice.
• DO NOT induce vomiting unless told to do so by the poi-
son control center or doctor.
• DO NOT give any liquid to the person.
• DO NOT give anything by mouth to an unconscious person.
If on skin or 
clothing
• Take off contaminated clothing.
• Rinse skin immediately with plenty of water for 15 to 
20 minutes.
• Call a poison control center or doctor for treatment advice.
If in eyes • Hold eyes open and rinse slowly and gently with water for 
15 to 20 minutes.
• Remove contact lenses, if present, after first 5 minutes; 
then continue rinsing eye.
• Call a poison control center or doctor for treatment advice.
If inhaled • Move person to fresh air.
• If person is not breathing, call 911 or an ambulance; then give 
artificial respiration, preferably mouth to mouth if possible.
• Call a poison control center or doctor for further treatment 
advice.
HOTLINE NUMBER
Have the product container or label with you when calling a poison control 
center or doctor, or going for treatment. In case of an emergency endangering 
life or property involving this product, call BASF Corporation for emergency 
medical treatment information, day or night 1-800-832-HELP (4357).
NOTE TO PHYSICIAN
No specific antidote is available. All treatments should be based on observed 
signs and symptoms of distress in the patient. Overexposure to materials 
other than this product may have occurred.
This product contains petroleum distillates. If large amounts (greater than 
1 ml/kg body weight) of the product have been ingested, the stomach should 
be evacuated by gastric intubation with aid of cuffed endotracheal tube to 
prevent aspiration of petroleum distillates. After removal of stomach contents, 
wash stomach by instilling 30 to 50 grams of activated charcoal in 3 to 
4 ounces of water through the stomach tube and again remove stomach con-
tents. Avoid oily laxatives.

3
Precautionary Statements
Hazards to Humans and Domestic Animals
CAUTION. Harmful if absorbed through skin or inhaled. Avoid breathing spray 
mist. Avoid contact with skin, eyes, or clothing.
Personal Protective Equipment (PPE)
Applicators and other handlers must wear:
• Long-sleeved shirt and long pants
• Chemical-resistant gloves made of barrier laminate, butyl rubber ≥ 14 mils, 
nitrile rubber ≥ 14 mils, neoprene rubber ≥ 14 mils, natural rubber (includes 
natural rubber blends and laminates) ≥ 14 mils, polyethylene, polyvinyl 
 chloride (PVC) ≥ 14 mils, or viton ≥ 14 mils
• Shoes plus socks
Follow manufacturer’s instructions for cleaning and maintaining PPE. If no such 
instructions for washables exist, use detergent and hot water. Keep and wash 
PPE separately from other laundry.
USER SAFETY RECOMMENDATIONS
Users should:
• Wash hands before eating, drinking, chewing gum, using tobacco, or using 
the toilet.
• Remove clothing/PPE immediately if pesticide gets inside. Then wash thor-
oughly and put on clean clothing.
• Remove PPE immediately after handling this product. Wash the outside of 
gloves before removing. As soon as possible, wash thoroughly and change 
into clean clothing.
Precautionary Statements
Hazards to Humans and Domestic Animals
CAUTION. Causes moderate eye irritation. Harmful if swallowed, inhaled, or 
absorbed through the skin. Avoid contact with eyes, skin, or clothing. Avoid 
breathing vapors or mist.
Personal Protective Equipment (PPE)
Applicators and other handlers must wear:
• Long-sleeved shirt and long pants
• Chemical-resistant gloves made of barrier laminate, butyl rubber ≥ 14 mils, 
nitrile rubber ≥ 14 mils, neoprene rubber ≥ 14 mils, natural rubber (includes 
natural rubber blends and laminates) ≥ 14 mils, polyethylene, polyvinyl 
 chloride (PVC) ≥ 14 mils, or viton ≥ 14 mils
• Shoes plus socks
Follow manufacturer’s instructions for cleaning and maintaining PPE. If no such 
instructions for washables exist, use detergent and hot water. Keep and wash 
PPE separately from other laundry.
Engineering Controls
When handlers use closed systems, enclosed cabs, or aircraft in a manner that 
meets the requirements listed in the Worker Protection Standard (WPS) for agri-
cultural pesticides [40 CFR 170.240(d) (4-6)], the handler PPE (Personal 
Protective Equipment) may be reduced or modified as specified in the WPS. For 
aerial application to high-acreage field crops: “Handlers must use closed mixing 
loading systems during mixing and loading liquids for aerial application to 
wheat.”
IMPORTANT: When reduced PPE is worn because a closed system is being 
used, handlers must be provided all PPE specified above for applicators and 
other handlers and have such PPE immediately available for use in an emer-
gency, such as a spill or equipment breakdown.
USER SAFETY RECOMMENDATIONS
Users should:
• Wash hands before eating, drinking, chewing gum, using tobacco, or using 
the toilet.
• Remove clothing/PPE immediately if pesticide gets inside. Then wash thor-
oughly and put on clean clothing.
• Remove PPE immediately after handling this product. Wash the outside of 
gloves before removing. As soon as possible, wash thoroughly and change 
into clean clothing.

4
Environmental Hazards
This pesticide may be hazardous to plants outside the treated area. DO NOT 
apply directly to water, or to areas where surface water is present, or to intertid-
al areas below the mean high water mark. Off-site movement from spray drift, 
volatilization, and runoff may be hazardous to neighboring crops and vegetative 
habitat used for food and cover by wildlife and aquatic organisms. DO NOT 
contaminate water when disposing of equipment washwater or rinsate.
Nontarget Organism Advisory Statement: This prod uct is toxic to plants and 
may adversely impact the forage and habitat of nontarget organisms, including 
pollinators, in areas adjacent to the treated site. Protect the forage and habitat of 
nontarget organisms by following label directions intended to minimize spray drift.
Groundwater Advisory Statement: This chemical has properties and char-
acteristics associated with chemicals detected in groundwater. This chemical 
may leach into groundwater if used in areas where soils are permeable, particu-
larly where the water table is shallow.
Surface Water Advisory Statement: This product may impact surface water 
quality due to runoff of rain water. This is especially true for poorly draining soils and 
soils with shallow groundwater. This product is classified as having high potential for 
reaching surface water via runoff for several months or more after application.
A level, well-maintained vegetative buffer strip between areas to which this 
product is applied and surface water features such as ponds, streams, and 
springs will reduce the potential loading of Clearmax
® herbicide from runoff 
water and sediment. Runoff of this product will be reduced by avoiding applica-
tions when rainfall or irrigation is expected to occur within 48 hours.
In Case of Emergency
In case of large-scale spill of this product, call:
• CHEMTREC 1-800-424-9300
• BASF Corporation 1-800-832-HELP (4357)
In case of medical emergency regarding this product, call:
• Your local doctor for immediate treatment
• Your local poison control center (hospital)
• BASF Corporation 1-800-832-HELP (4357)
Steps to take if material is released or spilled:
• Dike and contain the spill with inert material (sand, earth, etc.) and transfer 
liquid and solid diking material to separate containers for disposal.
• Remove contaminated clothing, and wash affected skin areas with soap and 
water.
• Wash clothing before reuse.
• Keep the spill out of all sewers and open bodies of water.
Environmental Hazards
This pesticide is toxic to fish, aquatic invertebrates, and aquatic plants. 
DO NOT apply directly to water, to areas where surface water is present or to 
intertidal areas below the mean high water mark. DO NOT contaminate water 
when disposing of equipment washwater or rinsate. Drift and runoff may be 
hazardous to aquatic organisms in water adjacent to treated areas. Runoff of 
this product will be reduced by avoiding applications when rainfall is forecast to 
occur within 48 hours. Avoid spray drift to susceptible plants such as cotton, 
beans, tomatoes, and ornamentals. Coarse sprays are less likely to drift. 
DO NOT apply when weather conditions favor drift from treated areas. Avoid 
use of small diameter spray nozzles. At high air or ground surface tempera-
tures, vapors from this product may injure susceptible plants. DO NOT use in a 
greenhouse.
Groundwater contamination. This chemical has properties and characteris-
tics associated with chemicals detected in groundwater. The use of this 
chemical in areas where soils are permeable, particularly where the water table 
is shallow, may result in groundwater contamination. Most cases of groundwa-
ter contamination involving phenoxy herbicides, such as MCPA, have been 
associated with mixing/loading and disposal sites. Caution should be exercised 
when handling MCPA pesticides at such sites to prevent contamination of 
groundwater supplies. Use of closed systems for mixing and transferring this 
pesticide will reduce the probability of spills. Placement of the mixing/loading 
equipment on an impervious pad to contain spills will help prevent groundwater 
contamination.
Cleaning of equipment. DO NOT use the same spray equipment for other 
purposes unless thoroughly cleaned. When cleaning equipment, DO NOT pour 
washwater on the ground; spray or drain over a large area away from wells and 
other water sources.
In Case of Emergency
For chemical spill, leak, fire, or exposure call:
• CHEMTREC 1-800-424-9300
• For Medical Emergencies Only 1-877-325-1840

5
Directions For Use
It is a violation of federal law to use this product in a manner inconsistent with 
its labeling. This labeling must be in the possession of the user at the time of 
pesticide application.
Use entire contents of this container to treat between 10.7 and 16 acres.
DO NOT apply this product in a way that will contact workers or other persons, 
either directly or through drift. Only protected handlers may be in the area 
during application. For any requirements specific to your state or tribe, consult 
the agency responsible for pesticide regulation.
Ensure spray drift to nontarget species does not occur.
DO NOT apply Clearmax
® herbicide in any manner not specifically described 
in this label.
DO NOT apply this product through any type of irrigation system.
When applied by either ground or air, Clearmax spray drift or other indirect 
contact may injure sensitive crops, including non-imidazolinone-tolerant wheat, 
sunflower or canola, sugar beets, and leafy vegetables.
Spray equipment used for Clearmax application must be drained and thor-
oughly cleaned with water before being used to apply other products.
Observe all cautions and limitations on this label and on the labels of products 
used in combination with Clearmax. DO NOT use Clearmax other than in 
accordance with the instructions set forth on this label. Keep containers closed 
to avoid spills and contamination. It is the pesticide user’s responsibility to 
ensure that all products in the listed mixtures are registered for the intended 
use. Users must follow the most restrictive directions for use and precautionary 
statements of each product in the tank mixture.
AGRICULTURAL USE REQUIREMENTS
Use this product only in accordance with its labeling and with the Worker 
 Protection Standard, 40 CFR Part 170. This standard contains requirements 
for the protection of agricultural workers on farms, forests, nurseries, and 
greenhouses, and handlers of agricultural pesticides. It contains requirements 
for training, decontamination, notification, and emergency assistance. It also 
contains specific instructions and exceptions pertaining to the statements on 
this label about Personal Protective Equipment (PPE) and restricted-entry 
interval. The requirements in this box only apply to uses of this product that 
are covered by the Worker Protection Standard.
DO NOT enter or allow worker entry into treated areas during the restricted- 
entry interval (REI) of 12 hours.
PPE required for early entry to treated areas that is permitted under the Work-
er Protection Standard and that involves contact with anything that has been 
treated, such as plants, soil, or water is:
• Coveralls
• Chemical-resistant gloves made of barrier laminate, butyl rubber ≥ 14 mils, 
nitrile rubber ≥ 14 mils, neoprene rubber ≥ 14 mils, natural rubber (includes 
natural rubber blends and laminates) ≥ 14 mils, polyethylene, polyvinyl 
 chloride (PVC) ≥ 14 mils, or viton ≥ 14 mils
• Shoes plus socks
STORAGE AND DISPOSAL
DO NOT contaminate water, food, or feed by storage or disposal.
Pesticide Storage
Keep from freezing. DO NOT store below 32° F.
Pesticide Disposal
Wastes resulting from the use of this product may be disposed of on-site or 
at an approved waste disposal facility.
Container Handling
Nonrefillable Container. DO NOT reuse or refill this container. Triple rinse 
or pressure rinse container (or equivalent) promptly after emptying; then offer 
for recycling, if available, or reconditioning, if appropriate, or puncture and 
dispose of in a sanitary landfill, or by incineration, or by other procedures 
approved by state and local authorities.
(continued)

6
STORAGE AND DISPOSAL (continued)
Container Handling (continued)
Triple rinse containers small enough to shake (capacity ≤ 5 gallons) 
as follows: Empty the remaining contents into application equipment or a 
mix tank and drain for 10 seconds after the flow begins to drip. Fill the con-
tainer 1/4 full with water and recap. Shake for 10 seconds. Pour rinsate into 
application equipment or a mix tank, or store rinsate for later use or disposal. 
Drain for 10 seconds after the flow begins to drip. Repeat this procedure two 
more times.
Pressure rinse as follows: Empty the remaining contents into application 
equipment or mix tank and continue to drain for 10 seconds after the flow 
begins to drip. Hold container upside down over application equipment or 
mix tank, or collect rinsate for later use or disposal. Insert pressure rinsing 
nozzle in the side of the container and rinse at about 40 PSI for at least 
30 seconds. Drain for 10 seconds after the flow begins to drip.
Product Information
Clearmax® herbicide is intended for the postemergence control of a wide 
spectrum of broadleaf and grass weeds in Clearfield ® wheat.
Clearmax is provided in a molded jug pack that contains enough ammonium 
salt of imazamox and 2-ethylhexyl ester of MCPA to treat between 10.7 and 
16 acres.
The mode of weed-killing activity involves uptake of Clearmax by foliage and/
or weed roots and rapid translocation to the growing points. After Clearmax 
application, susceptible weeds may show yellowing or epinasty, and weed 
growth will stop. Susceptible weeds stop growing and die or are not competi-
tive with the crop. Adequate soil moisture is important for optimum Clearmax 
activity. When adequate soil moisture is present, Clearmax provides residual 
activity of susceptible germinating weeds; activity on established weeds 
depends on the weed species and the location of its root system in the soil.
DO NOT tank mix organophosphate (such as Lorsban
® insecticide) or 
 carbamate insecticides with Clearmax on Clearfield crops unless otherwise 
specified in writing by BASF. DO NOT apply an organophosphate insecticide 
within 7 days of Clearmax application.
Use of Clearmax is expected to result in normal growth of rotational crops in 
most situations; however, various environmental and agronomic factors make it 
impossible to eliminate all risks associated with the use of this product and, 
therefore, rotational crop injury is always possible.
Occasionally, internode shortening and/or temporary yellowing of crop plants 
may occur following Clearmax applications. These effects can be more 
pronounced if crops are growing under stressful environmental or hot and 
humid conditions. These effects occur infrequently and are temporary. Normal 
growth and appearance should resume within 1 to 2 weeks.
Replanting. If replanting is necessary in a field previously treated with 
 Clearmax, the field may be replanted to peas or Clearfield and Clearfield
® 
Plus wheat. Rework the soil no deeper than 2 inches. DO NOT apply a second 
treatment of Clearmax to the replanted crop. DO NOT apply Pursuit® 
 herbicide or Raptor® herbicide if soybeans are replanted.
Mode of Action (MOA) for Imazamox
Imazamox, one of the active ingredients in Clearmax is a Group 2 (WSSA) 
herbicide. Herbicides in this group inhibit acetolactate synthase (ALS) or 
 acetohydroxyacid synthase (AHAS), a key enzyme in the biosynthesis of the 
branched-chain amino acids isoleucine , leucine, and valine. Meristematic 
 chlorosis, followed by general foliar chlorosis and eventual plant death results 
from events occurring in response to ALS inhibition and low branched-chain 
amino acid production.
Weed Resistance Management
For resistance management, please note that Clearmax contains both a 
Group 2/ALS inhibitor and a Group 4/Auxin growth regulator herbicide. 
Any weed population may contain plants naturally resistant to Group 2 or 
Group 4 herbicides. The resistant individuals may dominate the weed popula-
tion if these herbicides are used repeatedly in the same fields. Herbicide 
resistance could be suspected when the following three indicators occur at a 
site:
• There is failure to control a weed species normally controlled by the herbicide 
at the dose applied, especially if control is achieved on adjacent weeds.
• There is a spreading patch of non-controlled plants of a particular weed 
species.
• The surviving plants are mixed with controlled individuals of the same 
species.
Contact your local sales representative, crop advisor, or extension agent to find 
out if suspected resistant weeds to this mode of action have been found in your 
region.
Weed resistance to Group 2 herbicides is common in a number of weed spe-
cies and in populations of naturally occurring biotypes
1 of some of the weeds 
listed on this label.
Naturally occurring biotypes of some of the weeds listed on this label may not 
be effectively controlled by this and/or other products with the ALS enzyme-in-
hibiting mode of action. Other herbicides with the ALS enzyme-inhibiting mode 
of action include sulfonylureas (e.g. Finesse
® herbicide), imidazolinones (e.g. 
Pursuit or Scepter® 70 DG herbicide), sulfonamides (e.g. Hornet® 
 herbicide), and pyrimidyl benzoates (e.g. Staple® herbicide). If naturally

7
occurring ALS-resistant biotypes are present in a field, Clearmax® herbicide 
and/or any other ALS enzyme-inhibiting mode-of-action herbicide should be 
tank mixed or applied sequentially with an appropriate registered herbicide hav-
ing a different mode of action to ensure control.
1 A weed biotype is a naturally occurring plant within a given species that has a slightly different, 
but distinct, genetic makeup from other plants.
If naturally occurring ALS-resistant weeds and/or biotypes of target weeds are 
present in a field, use the application rates of Clearmax specified for your local 
conditions. Clearmax and/or any other ALS enzyme- inhibiting mode-of-action 
herbicide should be tank mixed or appl ied sequentially with an appropriate 
regis tered herbicide having a different mode of action to ensure that there are 
multiple effective mechanisms of actions for each target weed.
Clearmax is active against many broadleaf and grass weed species. For long-
term weed management, use 2 herbicides with different modes of action (like 
Clearmax) to reduce the potential for weed resistance. Crop (and herbicide) 
rotation is also effective in managing weed resistance where herbicides of dif-
ferent modes of action are used. Tillage, where practical (such as in fallow 
production or before planting), is also effective in controlling weeds to minimize 
resistance development. Additionally, a burndown herbicide during fallow or 
before planting is also effective in reducing weed resistance development.
Resistance management should be part of a diversified weed control strategy 
that integrates chemical, cultural and mechanical (tillage) control tactics. Cultur-
al control tactics include crop rotation, proper fertilizer placement and optimum 
seeding rate/row spacing. Consult your local BASF representative, state coop-
erative extension service, professional consultants, or other qualified authority 
to determine appropriate actions if you suspect resistant weeds.
Chemical Control
• Start clean with tillage or an effective burn-down herbicide program.
• DO NOT rely on a single herbicide mode of action for weed control.
• Follow labeled application rate and weed growth stage specifications.
• The use of preemergence herbicides that provide soil residual control of 
broadleaf and grass weeds is recommended to reduce early season weed 
competition and allow for timely in-crop postemergence herbicide 
applications.
• Avoid application of herbicides with the same mode of action more than twice 
a season.
• Use tank mixes and sequential applications with other herbicides possessing 
different modes of action that are also effective on the target weeds.
Scouting and Containment
• Scout fields after herbicide application to identify areas where weed control 
was ineffective.
• Control weed escapes with herbicides possessing a different mode of action 
or use a mechanical control measure. Weed escapes should not be allowed 
to reproduce by seed or to proliferate vegetatively.
• Scout fields before herbicide application to ensure herbicides and rates will be 
optimum for the weed species and weed sizes present. Consider application 
and environmental factors that may have led to incomplete control.
• Contact your herbicide supplier and/or your local BASF representative to 
report weed escapes.
• Clean equipment before moving to a different field to avoid spread of resistant 
weeds.
Mixing Instructions
Applications of Clearmax require the addition of an appropriate surfactant 
AND nitrogen fertilizer.
Adjuvants
Surfactants. Use a nonionic surfactant containing at least 80% active ingredi-
ent. Apply the surfactant at 1 quart per 100 gallons of spray solution 
(0.25% volume/volume [v/v]).
AND
Nitrogen Fertilizer. Nitrogen-based fertilizers include liquid fertilizers (such as 
liquid ammonium sulfate [AMS], 28% N, 32% N, or 10-34-0) at 2.5 gallons per 
100 gallons of spray solution. Instead of a liquid fertilizer, spray grade 
 ammonium sulfate may be used at 12 to 15 pounds per 100 gallons of spray 
solution. Ammonium sulfate/nitrogen substitutes should not be used unless 
specified by BASF.
Fill the spray tank 1/2 to 3/4 full with clean water. Add the required number of 
Clearmax containers (the contents of one container treats between 10.7 and 
16 acres) to the spray tank while agitating. Add adjuvants and fill the remainder 
of the tank with water.
Tank Mix Combinations with Other Herbicides
If other herbicides or other spray tank components are tank mixed with 
 Clearmax, while agitating, add components in the following order and thor-
oughly mix after adding each component.
1. Fill spray tank 1/2 to 3/4 full with clean water.
2. Add soluble-packet products and thoroughly mix.
3. Add WP (wettable powder), DG (dispersible granule), DF (dry flowable), or liq-
uid flowable formulations not in soluble packets.
4. Add Clearmax and thoroughly mix.
5. Add other aqueous solution products.
6. Add EC (emulsifiable concentrate) products.

8
7. Add surfactant to the spray tank.
8. Add nitrogen fertilizer.
9. While agitating, fill the remainder of the tank with water.
Evaluate potential tank mixes for compatibility using a simple jar test before 
actual tank mixing.
To avoid injury to sensitive crops, spray equipment used for Clearmax® 
 herbicide applications must be drained and thoroughly cleaned with water 
before being used to apply other products.
When Clearmax is used in a tank mix with another herbicide, refer to the 
respective label for rates, methods of application, proper timing, weeds con-
trolled, restrictions, and precautions. Always use in accordance with the most 
restrictive label restrictions and precautions. No label dosages may be exceed-
ed. DO NOT tank mix Clearmax with any product having a label prohibiting 
such mixtures. It is the pesticide user’s responsibility to ensure that all products 
in the listed mixtures are registered for the intended use. Users must follow the 
most restrictive directions for use and precautionary statements of each prod-
uct in the tank mixture.
Spraying Instructions
DO NOT apply when wind conditions may result in drift, when temperature 
inversion conditions exist, or when spray may be carried to sensitive crops. 
Sensitive crops include, but are not limited to, leafy vegetables and sugar beets.
Ground Application
Uniformly apply with properly calibrated ground equipment in 10 or more gal-
lons of water per acre and a spray pressure of 20 to 40 PSI.
To ensure thorough coverage, use a minimum of 20 gallons of water per acre 
when applying Clearmax to minimum-till or no-till crops. Use higher gallonage 
(>20 GPA) for fields with dense vegetation or heavy crop residues.
Adjust the boom height to ensure proper coverage of weed foliage (according 
to the manufacturer’s instructions). Use appropriate nozzle tips to ensure ade-
quate coverage. DO NOT overlap when spraying.
Ground Application with Low-volume Sprayer
Clearmax may be applied with a low-volume sprayer. When applying Clearmax 
with a low-volume sprayer, spray weeds before they reach the maximum size or 
tiller number listed in this label. Weed control depends on thorough spray cover-
age of the weeds. The sprayer must be calibrated to deliver the specified spray 
volume and pressure to ensure thorough spray coverage of the weeds.
When applying Clearmax with a low-volume sprayer, apply a minimum of 
10 gallons per acre of spray solution with a nozzle pressure between 40 to 
60 PSI for optimum coverage.
Aerial Application
Clearmax may be applied by air to crops listed on this label. Uniformly apply 
with properly calibrated equipment in 5 or more gallons of water per acre. The 
addition of a surfactant AND nitrogen fertilizer are required for optimum weed 
control.
Nonuniform applications of Clearmax through aerial equipment may increase 
Clearfield
® crop response (stunting, chlorosis), especially when applied to 
large slopes and hills. All risks associated with nonuniform applications shall be 
assumed by the user.
Mandatory Spray Drift Management
Ground Boom Applications
• User must only apply with the release height recommended by the manu-
facturer, but no more than 3 ft above the ground or crop canopy.
• Applicators are required to use a medium or coarser droplet size 
(ASABE S572.1).
• DO NOT apply when wind speeds exceed 15 mph at the application site.
• DO NOT apply during temperature inversions.
Aerial Applications
• DO NOT release spray at a height greater than 10 ft above the ground or 
vegetative canopy, unless a greater application height is necessary for pilot 
safety.
• Applicators are required to use a medium or coarser droplet size 
(ASABE S572.1).
• DO NOT apply when wind speeds exceed 15 mph at the application site. If 
the wind speed is greater than 10 mph, the boom length must be 65% or 
less of the wingspan for fixed wing aircraft and 75% or less of the rotor 
diameter for helicopters. Otherwise, the boom length must be 75% or less 
of the wingspan for fixed wing aircraft and 90% or less of the rotor diameter 
for helicopters.
• If the windspeed is 10 mph or less, applicators must use 1/2 swath dis-
placement upwind at the downwind edge of the field. When the windspeed 
is between 11 to 15 mph, applicators must use 3/4 swath displacement 
upwind at the downwind edge of the field.
• DO NOT apply during temperature inversions.

9
Spray Drift Advisories
THE APPLICATOR IS RESPONSIBLE FOR AVOIDING OFF-SITE SPRAY DRIFT. 
BE AWARE OF NEARBY NON-TARGET SITES AND ENVIRONMENTAL 
CONDITIONS.
Importance of Droplet Size
An effective way to reduce spray drift is to apply large droplets. Use the largest 
droplets that provide target pest control. While applying larger droplets will 
reduce spray drift, the potential for drift will be greater if applications are made 
improperly or under unfavorable environmental conditions.
Controlling Droplet Size - Ground Boom
• Volume - Increasing the spray volume so that larger droplets are produced 
will reduce spray drift. Use the highest practical spray volume for the applica-
tion. If a greater spray volume is needed, consider using a nozzle with a 
higher flow rate.
• Pressure - Use the lowest spray pressure recommended for the nozzle to 
produce the target spray volume and droplet size.
• Spray Nozzle - Use a spray nozzle that is designed for the intended applica-
tion. Consider using nozzles designed to reduce drift.
Controlling Droplet Size - Aircraft
• Adjust Nozzles - Follow nozzle manufacturers recommendations for setting 
up nozzles. Generally, to reduce fine droplets, nozzles should be oriented par-
allel with the airflow in flight.
Boom Height - Ground Boom
• Use the lowest boom height that is compatible with the spray nozzles that will 
provide uniform coverage.
• For ground equipment, the boom should remain level with the crop and have 
minimal bounce.
Release Height - Aircraft
• Higher release heights increase the potential for spray drift.
Shielded Sprayers
• Shielding the boom or individual nozzles can reduce spray drift. Consider 
using shielded sprayers. Verify that the shields are not interfering with the uni-
form deposition of the spray on the target area.
Temperature and Humidity
• When making applications in hot and dry conditions, use larger droplets to 
reduce effects of evaporation.
Temperature Inversions
• Drift potential is high during a temperature inversion. Temperature inversions 
are characterized by increasing temperature with altitude and are common on 
nights with limited cloud cover and light to no wind. The presence of an inver-
sion can be indicated by ground fog or by the movement of smoke from a 
ground source or an aircraft smoke generator. Smoke that layers and moves 
laterally in a concentrated cloud (under low wind conditions) indicates an 
inversion, while smoke that moves upward and rapidly dissipates indicates 
good vertical air mixing. Avoid applications during temperature inversions.
Wind
• Drift potential generally increases with wind speed. AVOID APPLICATIONS 
DURING GUSTY WIND CONDITIONS.
• Applicators need to be familiar with local wind patterns and terrain that could 
affect spray drift.
Apply only when wind speed is 2 to 10 mph at the application site.
Avoiding spray drift at the application site is the responsibility of the applicator. 
The interaction of many equipment-related and weather-related factors deter-
mines the potential for spray drift. The applicator and the grower are 
responsible for considering all these factors when making application decisions.
Application Information
Use the entire contents of this container to treat the specified number of acres.
Apply Clearmax ® herbicide as a postemergence treatment when 
weeds are actively growing and before they exceed the maximum 
specified size (see Weeds Controlled or Suppressed tables). Delay appli-
cation until the majority of the weeds are at the specified growth stage.
Application timing should be based primarily on Clearfield
® wheat growth 
stage. In general, Clearmax should be applied when weeds are small and 
actively growing. A surfactant and a nitrogen fertilizer must be added to the 
spray solution for optimum weed control activity. See Adjuvants in the Mixing 
Instructions section for specific instructions.
When Clearmax is applied postemergence, absorption will occur through both 
the roots and foliage. Susceptible weeds stop growing and die or are not com-
petitive with the crop. Clearmax not only controls many existing broadleaf and 
grass weeds when applied postemergence, it also controls or suppresses sus-
ceptible broadleaf weeds that may emerge shortly after application.
Weeds are controlled when actively growing. Under cold temperature condi-
tions (less than 40° F maximum daytime temperature), weed control may be 
reduced. Apply Clearmax a minimum of 1 hour before rainfall or overhead 
irrigation.

10
Clearfield ® Wheat
Clearmax® herbicide can be applied postemergence on Clearfield wheat 
(imidazolinone- tolerant wheat) varieties. Apply only on wheat varieties labeled 
“Clearfield ” and warranted by the seed supplier to possess tolerance to direct 
application of Clearmax. DO NOT apply Clearmax to wheat varieties that 
lack resistance/tolerance to imidazolinone herbicides. Contact your seed sup-
plier, chemical dealer, or BASF to obtain information regarding Clearfield 
wheat varieties.
Apply Clearmax as an early postemergence treatment when weeds are 
actively growing and before broadleaf weeds exceed a height of 
3 inches and grasses exceed 4 to 5 leaves (unless otherwise indicated). 
Under cold temperature conditions (less than 40° F maximum daytime tem-
perature), weed control may be less than optimal. A thin stand of wheat may 
result in unacceptable weed control. Clearmax is effective in controlling weeds 
in conservation tillage and conventional tillage wheat production systems. Delay 
application until the majority of weeds are at the specified growth stage. When 
a mixture of grasses and broadleaf weeds are present, time application to grass 
weeds for optimum control.
When adequate soil moisture is present, Clearmax provides residual activity of 
susceptible germinating broadleaf weeds.
Occasionally, reduction in plant height or temporary yellowing of crop plants 
may occur after Clearmax applications. These effects can be more pro-
nounced in spray overlap areas and/or if crops are growing under stressful 
environmental conditions (such as, but not limited to, drought, excessive mois-
ture, improper fertility, improper varietal adaptation, poor planting conditions, 
etc.). To avoid possible crop injury, DO NOT apply Clearmax to Clearfield 
wheat when extreme cold temperatures (less than 40° F maximum daytime 
temperature) are expected within 1 week of application. Crop response associ-
ated with stress conditions and overlaps shall be the responsibility of the user.
Weed control is optimized when Clearmax is applied to actively growing 
wheat. Plant a locally adapted Clearfield variety at the normal seeding rate for 
your geography. Apply to wheat after tiller initiation has begun and before the 
jointing stage of growth (when weeds are at the appropriate size). See Weeds 
 Controlled or Suppressed tables.
Restrictions and Limitations
DO NOT forage or graze meat animals on treated areas within 7 days of 
slaughter. DO NOT forage or graze dairy animals on treated areas within 7 days 
after treatment.
Applying Clearmax to weeds that have been grazed may result in reduced 
weed control. For optimum weed control, allow a period of 7 days between the 
end of grazing and Clearmax application to allow weed regrowth. Wait until 
new growth of weeds is evident before applying Clearmax in fields that have 
been grazed.
Clearfield® Spring Wheat
Application Timing for Spring Wheat
Apply Clearmax to Clearfield spring wheat at 4-leaf to before jointing. See 
Weeds Controlled or Suppressed tables for specific growth stages.
Use Rate for Spring Wheat
Apply at the 12.8 acre rate (15 fluid ounces of Clearmax per acre). See Weeds 
Controlled or Suppressed tables for detailed use rate specifications.
An approved surfactant and nitrogen-based fertilizer must be added to the 
spray solution for optimum weed control activity. See Adjuvants in the Mixing 
Instructions section for specific instructions.
Crop-specific Restrictions and Limitations
DO NOT apply more than the 12.8 acre rate (15 fluid ounces of Clearmax per 
acre) during the growing season.
Weeds Controlled or Suppressed in Clearfield® Spring Wheat
Clearmax will control or suppress listed weeds when applied postemergence 
at the following specified rates.
Broadleaf Weeds Controlled 
12.8 Acre Rate
Maximum Weed Size 
(inches)
Canola, volunteer 5
Chickweed, common 3
Cocklebur, common 3
Flixweed 3
Henbit 3
Knotweed, prostrate 3
Lambsquarters, common
1 1
(continued)

11
Weeds Controlled or Suppressed in Clearfield ® Spring Wheat (continued)
Broadleaf Weeds Controlled (continued) 
12.8 Acre Rate
Maximum Weed Size 
(inches)
Mallow, 
common 3
Venice 1
Mustard, 
black 4
blue 4
tumble 3
wild 4
Nightshade, 
black 5
Eastern black 5
hairy 5
Pennycress, field 3
Pigweed, 
redroot 5
smooth 4
spiny 3
Purslane, common 3
Radish, wild 3
Rocket, 
London 5
yellow 5
Shepherd’s-purse 5
Smartweed, 
ladysthumb 3
Pennsylvania 3
Spurge, prostrate 3
Tansymustard, green 4
Thistle, Russian (non-ALS resistant) 3
Velvetleaf 3
1 Clearmax ® herbicide suppresses common lambsquarters west of the Rocky Mountains.
Weeds Controlled or Suppressed in Clearfield ® Spring Wheat (continued)
Broadleaf Weeds Suppressed 
12.8 Acre Rate
Maximum Weed Size 
(inches)
Bedstraw 3
Buckwheat, wild
1 3
Dandelion 3
Ragweed, 
common 3
giant 3
Thistle, Canada 3
1 See Specific Weed Problems for more information.
Grass Weeds Controlled 
12.8 Acre Rate
Weed Size 
Number of Leaves (maximum tillers)
Barnyardgrass 1 to 5 (1)
Brome, 
California 1 to 5 (2)
cheat 1 to 5 (2)
downy 1 to 5 (2)
Japanese 1 to 5 (2)
Canarygrass, littleseed 1 to 5 (2)
Cereals, volunteer
1 
barley 1 to 6 (1)
oat 1 to 6 (1)
wheat (non-Clearfield ) 1 to 4 (1)
Corn, volunteer (non-Clearfield ) 1 to 4
Crabgrass, large 1 to 4 (1)
Darnel, Persian 1 to 5 (2)
(continued)

12
Weeds Controlled or Suppressed in Clearfield ® Spring Wheat (continued)
Grass Weeds Controlled (continued) 
12.8 Acre Rate
Weed Size 
Number of Leaves (maximum tillers)
Foxtail, 
giant 1 to 6 (2)
green 1 to 4 (1)
yellow 1 to 4 (1)
Goatgrass, jointed 1 to 5 (2)
Oats, wild
1 1 to 5 (2)
Rescuegrass 1 to 4 (1)
1 See Specific Weed Problems for more information.
Grass Weeds Suppressed 
12.8 Acre Rate
Weed Size 
Number of Leaves (maximum tillers)
Rye, feral or cereal1 1 to 4 (1)
Ryegrass, Italian1 1 to 4 (1)
1 See Specific Weed Problems for more information.
Clearfield® Winter Wheat
Application Timing for Winter Wheat
Apply Clearmax® herbicide to Clearfield winter wheat at tiller initiation but 
before jointing. See Weeds Controlled or Suppressed tables for specific 
weed growth sizes.
Use Rate for Winter Wheat
Apply at the 16 to 10.7 acre rate (12 to 18 fluid ounces of Clearmax per acre). See 
Weeds Controlled or Suppressed tables for detailed use rate specifications.
A surfactant AND nitrogen-based fertilizer must be added to the spray solution 
for optimum weed control activity. See Adjuvants in the Mixing Instructions 
section for specific instructions.
Crop-specific Restrictions and Limitations
DO NOT apply more than the 10.7 acre rate (18 fluid ounces of Clearmax per 
acre) during the growing season.
Application of Clearmax to weeds that have been grazed may result in 
reduced weed control. For optimum weed control, allow a period of 7 days 
between the end of grazing and Clearmax application for weed regrowth to 
occur. Under cold conditions, wait until new growth of weeds is evident before 
applying Clearmax in fields that have been grazed.
Weeds Controlled or Suppressed in Clearfield® Winter Wheat
Clearmax will control or suppress listed weeds when applied postemergence 
at the following specified rates.
Broadleaf Weeds Controlled
Application Rate 
(acres treated)
Maximum Weed Size 
(inches)
Beet, wild 16 to 10.7 3
Canola, volunteer 16 to 10.7 5
Chickweed, common 16 to 10.7 3
Cocklebur, common 16 to 10.7 3
Filaree, 
redstem 12.8 to 10.7 3
whitestem 12.8 to 10.7 3
Flixweed 16 to 10.7 3
Henbit 12.8 to 10.7 3
Jimsonweed 16 to 10.7 3
Knotweed, prostrate 12.8 to 10.7 3
Lambsquarters, common
1 16 to 10.7 1
Lettuce, miners 12.8 to 10.7 3
Mallow, 
common 12.8 to 10.7 3
Venice 12.8 to 10.7 1
Morningglory, 
entireleaf 12.8 to 10.7 3
ivyleaf 12.8 to 10.7 3
smallflower 12.8 to 10.7 3
tall 12.8 to 10.7 3
(continued)

13
Weeds Controlled or Suppressed in Clearfield ® Winter Wheat (continued)
Broadleaf Weeds Controlled (continued)
Application Rate 
(acres treated)
Maximum Weed Size 
(inches)
Mustard, 
black 16 to 10.7 4
blue 16 to 10.7 4
tumble 16 to 10.7 3
wild 16 to 10.7 4
Nightshade, 
black 16 to 10.7 5
Eastern black 16 to 10.7 5
hairy 16 to 10.7 5
Pennycress, field 16 to 10.7 3
Pigweed, 
redroot 16 to 10.7 5
smooth 16 to 10.7 4
spiny 16 to 10.7 3
Purslane, common 16 to 10.7 3
Radish, wild 16 to 10.7 3
Rocket, 
London 12.8 to 10.7 5
yellow 12.8 to 10.7 5
Shepherd’s-purse 16 to 10.7 5
Smartweed, 
ladysthumb 16 to 10.7 3
Pennsylvania 16 to 10.7 3
swamp 12.8 to 10.7 3
Spurge, prostrate 12.8 to 10.7 3
Tansymustard, green 16 to 10.7 4
Thistle, Russian 
(non-ALS resistant) 12.8 to 10.7 3
Velvetleaf 16 to 10.7 3
1 Clearmax ® herbicide controls common lambsquarters at the 16 acre rate east of the Rocky 
Mountains. Apply 12.8 to 10.7 acre rate west of the Rocky Mountains.
Weeds Controlled or Suppressed in Clearfield ® Winter Wheat (continued)
Broadleaf Weeds Suppressed
Application Rate 
(acres treated)
Maximum Weed Size 
(inches)
Bedstraw 12.8 to 10.7 3
Buckwheat, wild
1 12.8 to 10.7 3
Dandelion 12.8 to 10.7 3
Fiddleneck 12.8 to 10.7 3
Primrose, 
cutleaf 12.8 to 10.7 3
evening 12.8 to 10.7 3
Ragweed, 
common 12.8 to 10.7 3
giant 12.8 to 10.7 3
Thistle, Canada 12.8 to 10.7 3
1 See Specific Weed Problems for more information.
Grass Weeds Controlled
Application Rate 
(acres treated)
Weed Size 
Number of Leaves (maximum tillers)
Barnyardgrass 12.8 to 10.7 1 to 5 (1)
Brome, 
California 16 to 10.7 1 to 5 (2)
cheat 16 to 10.7 1 to 5 (2)
downy 16 to 10.7 1 to 5 (2)
Japanese 16 to 10.7 1 to 5 (2)
Canarygrass, 
littleseed 16 to 10.7 1 to 5 (2)
Cereals, volunteer
1 
barley 16 to 10.7 1 to 6 (1)
oat 16 to 10.7 1 to 6 (1)
wheat 
(non-Clearfield ) 16 to 10.7 1 to 4 (1)
Corn, volunteer 
(non-Clearfield ) 16 to 10.7 1 to 4
(continued)

14
Weeds Controlled or Suppressed in Clearfield ® Winter Wheat (continued)
Grass Weeds Controlled (continued)
Application Rate 
(acres treated)
Weed Size 
Number of Leaves (maximum tillers)
Crabgrass, large 12.8 to 10.7 1 to 4 (1)
Darnel, Persian 16 to 10.7 1 to 5 (2)
Foxtail, 
giant 16 to 10.7 1 to 6 (2)
green 16 to 10.7 1 to 4 (1)
yellow 16 to 10.7 1 to 4 (1)
Johnsongrass, 
seedling 12.8 to 10.7 1 to 5 (1)
Jointed goatgrass 16 to 10.7 1 to 5 (2)
Oats, wild
1 16 to 10.7 1 to 5 (2)
Rescuegrass 16 to 10.7 1 to 4 (1)
1 See Specific Weed Problems for more information.
Grass Weeds Suppressed
Application Rate 
(acres treated)
Weed Size 
Number of Leaves (maximum tillers)
Brome, 
California 16 to 10.7 6+ (3+)
cheat 16 to 10.7 6+ (3+)
downy 16 to 10.7 6+ (3+)
Japanese 16 to 10.7 6+ (3+)
Fescue, rattail 16 to 10.7 1 to 3
Johnsongrass, 
rhizome 10.7 1 to 5
Jointed goatgrass 16 to 10.7 6+ (3+)
Sedge, 
purple 10.7 1 to 3
yellow 10.7 1 to 3
Quackgrass 10.7 1 to 5
Rye, feral or cereal
1 16 to 10.7 1 to 4 (1)
Ryegrass, Italian1 16 to 10.7 1 to 4 (1)
1 See Specific Weed Problems for more information.
Specific Weed Problems
Winter wheat ONLY. Clearmax® herbicide is most effective for grass and 
broadleaf weed control when applied in the fall. If summer annual broadleaf 
weeds germinate in the spring (following a fall application of Clearmax), a 
broadleaf herbicide application may be needed. If the Clearmax application is 
made in the spring, the broadleaf herbicide may be tank mixed with Clearmax. 
For improved suppression of grasses such as feral rye, Italian ryegrass, and 
downy brome, use higher rates of nitrogen fertilizer up to 5% by volume or 
15 lbs per 100 gallons of spray solution. Higher rates of nitrogen fertilizer can 
improve grass weed control with Clearmax; especially under drought stress 
conditions, additional crop response may be observed.
Cereals, volunteer (barley, oat and wheat). Clearmax controls emerged 
volunteer cereals only and only emerged non- Clearfield wheat.
Feral rye (cereal, volunteer rye). Clearmax suppresses emerged feral rye 
only. Apply to feral rye before the first tiller forms. When feral rye develops tillers, 
suppression is significantly reduced. In winter wheat, if feral rye germinates in 
the fall, an application of Clearmax in the fall provides the best suppression. If 
feral rye germinates following an application of Clearmax in the fall, a spring 
application of Clearmax or Beyond
® herbicide may be necessary for sup-
pression of subsequent germination flushes.
Italian ryegrass. Clearmax suppresses emerged Italian ryegrass only. Under 
favorable growing conditions, ryegrass may germinate over several weeks 
(especially in the southern U.S.). Clearmax does not provide residual control of 
Italian ryegrass. Optimum application timing is to ryegrass with 3 to 4 leaves 
and before the first tiller. Suppression is reduced when tillers develop. In the 
Pacific Northwest, a spring application of Clearmax is specified to achieve the 
most consistent suppression. In winter wheat, if Italian ryegrass germinates fol-
lowing a fall application, a spring application may be necessary. Apply the 
higher specified rate when Italian ryegrass is at the maximum specified size, or 
to heavy grass populations.
Kochia (resistant biotype). Naturally occurring ALS-resistant biotypes of 
kochia are common in wheat fields. In many cases, a tank mix with Clearmax 
will be required for acceptable control. If Clearmax is applied in the spring, 
apply Clearmax in tank mix with a herbicide(s) labeled to control kochia (i.e. 
bromoxynil). Apply to kochia 2 inches tall or less.
Wild buckwheat. For enhanced control of wild buckwheat, add Starane
® 
herbicide or bromoxynil to the tank mixture. Apply to wild buckwheat with no 
more than 2 true leaves.
Wild oats. Clearmax controls emerged wild oats only. Under favorable grow-
ing conditions, wild oats may germinate over several weeks. Clearmax does 
not provide residual control of wild oats.

15
Tank Mix Herbicide Combinations with Clearmax
Tank mixes for postemergence applications of Clearmax® herbicide on 
Clearfield ® wheat varieties are bromoxynil and Starane® herbicide. Limit 
bromoxynil applications to 0.5 lb/acre of active ingredient when tank mixed with 
Clearmax.
Sulfonylurea herbicides should not be tank mixed with Clearmax. 
Clearmax tank mixes with sulfonylurea herbicides may result in 
 unacceptable crop response.
When Clearmax is tank mixed, refer to the respective label for rates, methods 
and timing of application, weeds controlled, restrictions, and precautions. 
Always use in accordance with the most restrictive label use directions and pre-
cautions. It is the pesticide user’s responsibility to ensure that all products in the 
listed mixtures are registered for the intended use. Users must follow the most 
restrictive directions for use and precautionary statements of each product in 
the tank mixture.
Rotational Crop Restrictions
Rotational crops may be planted after applying the specified rate of Clearmax 
in the regions as indicated on the map.
• Region 1 - States and parts of states WEST of U.S. Highway 83 (Arizona, 
California, Colorado, Hawaii, Idaho, Montana, Nevada, New Mexico, Oregon, 
Utah, Washington, Wyoming, and western parts of Kansas, Nebraska, North 
Dakota, Oklahoma, South Dakota, and Texas).
• Region 2 - States and parts of states EAST of U.S. Highway 83 (includes 
eastern parts of Kansas, Nebraska, North Dakota, Oklahoma, South Dakota, 
Texas, and states EAST of these states).

16
Rotational Interval (months) following Clearmax ® herbicide Application
Plant-back Interval 
(months) Region 1 Region 2
Anytime Clearfield ® and 
Clearfield ® Plus 
wheat
Peas Clearfield and 
Clearfield Plus 
wheat
Peas
3 Alfalfa
Clearfield canola
Clearfield corn 
(field and seed)
Clearfield lentil
Clearfield rice
Clearfield and 
Clearfield Plus 
sunflower
Clover
Dry beans and 
dry peas except 
non-Clearfield lentil
Edamame
Lima beans 
(succulent)
Snap beans
Soybeans
Wheat
1,4 
(non-Clearfield )
Alfalfa
Clearfield canola
Clearfield corn 
(field and seed)
Clearfield lentil
Clearfield rice
Clearfield and 
Clearfield Plus 
sunflower
Clover
Dry beans and 
dry peas except 
non-Clearfield lentil
Edamame
Lima beans 
(succulent)
Snap beans
Soybeans
Wheat
4 
(non-Clearfield )
4 Rye Rye
8-1/2 Non-Clearfield corn (field, seed, sweet, and popcorn) Non- Clearfield corn (field, seed, sweet, and popcorn)
9 Barley1
Cantaloupe
Cotton
Grain sorghum
Lentil 
(non-Clearfield )
5
Lettuce
Millet
Oat
Onion
Peanut
Pumpkin
Rice
Squash
Sunflower
Tobacco
Watermelon
Barley
1
Broccoli
Cabbage
Cantaloupe
Carrot
Cotton
Cucumber
Grain sorghum
Lentil 
(non-Clearfield )
5
Lettuce
Millet
Oat
Onion
Peanut
Pepper
Potato
1
Pumpkin
Rice
Squash
Sunflower
Tobacco
Tomato
Turnip
Watermelon
18 Barley
1
Broccoli
Cabbage
Carrot
Cucumber
Lentil 
(non-Clearfield )
Pepper
Potato
Tomato
Turnip
Barley
Canola 
(non-Clearfield )
Condiment mustard
Lentil 
(non-Clearfield )
Potato
Sugar beets
2
Table beets2
All other crops not listed in the Rotational Crop Restrictions All other crops not listed in the Rotational Crop Restrictions
26 Canola 
(non-Clearfield )
Condiment mustard
Sugar beets3
Table beets Sugar beets 2 Table beets2
1 Refer to the following tables for rotational intervals for planting after Clearmax application.
2 In Region 2, sugar beets and table beets can be planted 18 months after an application of Clearmax if the soil pH is uniformly 6.2 or more. If the soil pH is less than 6.2, the rotational interval is 
26 months. Sugar beet yields can be reduced when grown in soil conditions with a pH less than 6.2. If the soil is limed to adju st the soil pH, apply the lime at least 18 months before planting sugar 
beets or other rotational crops under the 18-month rotational interval.
3 For sugar beets grown in parts of Nebraska west of U.S. Highway 83 and Platte, Goshen, and Laramie counties in Wyoming, follow the sugar beet rotational crop restrictions for Region 2 for 
sprinkler- irrigated fields only. If fields are dryland, flood-irrigated, or furrow-irrigated, follow restrictions for Region 1. A minimum of 10 inches of overhead irrigation must be applied each season to 
qualify for Region 2 guidelines.
4 Planting non-Clearfield spring or winter wheat in areas receiving less than 10 inches of precipitation from the time of Clearmax application up until wheat planting may result in wheat injury. The pos-
sibility of injury increases if less than normal precipitation occurs from the time of application to planting and/or within th e first 2 months after Clearmax application.
5 In Region 1 and Region 2, non-Clearfield lentil may be planted 9 months after an application of Clearmax if no more than the 12.8 acre rate of Clearmax has been applied and the soil pH is uni-
formly more than 6.2.

17
Barley Rotational Interval 
based on pH, Moisture, and Tillage Moldboard Plowing
Region 1 and Region 2 NO YES
pH and Rainfall 
requirements
>18 inches R+I AND pH >6.2 9 months
<18 inches R+I OR pH <6.2 18 months 9 months
Potato Rotational Interval based on pH and Moisture
Region 2
pH and Rainfall 
requirements
>18 inches R+I AND pH >6.2 9 months
<18 inches R+I OR pH <6.2 18 months
Non-Clearfield ® Wheat Rotational Interval 
based on pH, Moisture, and Tillage Moldboard Plowing
Region 1* NO YES
pH and Rainfall 
requirements
>10 inches R+I AND pH >6.2 3 months
<10 inches R+I OR pH <6.2 15 months 3 months
* Except Washington and selected counties in Idaho and Oregon listed in the following table.
Non-Clearfield Wheat Rotational Interval based on pH and Moisture
Washington and selected counties in Idaho* and Oregon**
pH and Rainfall 
requirements
>16 inches R+I AND pH >6.2 3 months
<16 inches R+I OR pH <6.2 15 months
 * Selected counties in Idaho - Benewah, Bonner, Boundary, Clearwater, Idaho, Kootenai, 
Latah, Lewis, Nez Perce, and Shoshone
** Selected counties in Oregon - All but Malheur
When taking soil samples to determine soil pH, use a grid sampling technique, 
sampling to a depth of 3 to 4 inches.
R+I = Rainfall and overhead irrigation from the time of Clearmax® herbicide 
application up until time of barley, potato, or non-Clearfield wheat planting. 
Does not include furrow or flood irrigation.
If the rainfall or pH requirements are not fully met and barley or non- Clearfield 
wheat is planted before the specified rotational interval, injury may be reduced 
by tillage, such as deep disking (more than 6-inches deep) after crop harvest 
but before November 1.
The possibility of injury to barley or non- Clearfield wheat planted the next sea-
son increases if less than normal precipitation occurs from the time of 
Clearmax application to planting and/or within the first two months 
after Clearmax application .
Furrow-irrigated and Flood-irrigated Crops
Following harvest of furrow-irrigated or flood-irrigated crops, thoroughly mix soil 
by plowing or deep disking to minimize the potential for herbicide carryover to 
the following crop.
Use of Clearmax in accordance with label directions is expected to result in 
normal growth of rotational crops in most situations; however, various environ-
mental and agronomic factors, such as arid conditions, make it impossible to 
eliminate all risks associated with the use of this product and, therefore, rota-
tional crop injury is always possible.
Use Precautions
In the event of a crop loss due to weather, peas or Clearfield and Clearfield ® 
Plus wheat can be replanted. DO NOT make an additional application of 
Clearmax.
Application of products containing chlorimuron ethyl ( Canopy® herbicide), 
metsulfuron-methyl (Harmony® Extra herbicide ), imazaquin 
 (Scepter® 70 DG herbicide), or imazethapyr (Pursuit® herbicide) the same 
year as Clearmax may increase the risk of injury to sensitive rotational crops. 
Consult all pertinent labels for specific use of these products in combinations.
If arid conditions occur during the year of application, rotational crop injury may 
occur.

18
© 2021 BASF Corporation
All rights reserved.
007969.00238.20200423c.NVA 2020-04-269-0080
Supersedes: NVA 2015-04-269-0123
BASF Corporation
26 Davis Drive
Research Triangle Park, NC 27709
Beyond, Clearfield , Clearmax, Pursuit, Raptor, and Scepter are registered 
trademarks of BASF.
Hornet, Lorsban, and Starane are trademarks of Dow AgroSciences LLC.
Canopy, Finesse, Harmony, and Staple are trademarks of E.I. duPont de 
Nemours and Company.
Conditions of Sale and Warranty
The Directions For Use of this product reflect the opinion of experts 
based on field use and tests. The directions are believed to be reliable and 
must be followed carefully. However, it is impossible to eliminate all risks 
inherently associated with the use of this product. Crop injury, ineffectiveness 
or other unintended consequences may result because of such factors as 
weather conditions, presence of other materials, or use of the product in a 
manner inconsistent with its labeling, all of which are beyond the control of 
BASF CORPORATION (“BASF”) or the Seller. To the extent consistent with 
applicable law, all such risks shall be assumed by the Buyer.
BASF warrants that this product conforms to the chemical description on the 
label and is reasonably fit for the purposes referred to in the Directions For 
Use, subject to the inherent risks, referred to above.
TO THE EXTENT CONSISTENT WITH APPLICABLE LAW, BASF 
MAKES NO OTHER EXPRESS OR IMPLIED WARRANTY OF FITNESS 
OR MERCHANTABILITY OR ANY OTHER EXPRESS OR IMPLIED 
WARRANTY.
TO THE EXTENT CONSISTENT WITH APPLICABLE LAW, BUYER’S 
EXCLUSIVE REMEDY AND BASF’S EXCLUSIVE LIABILITY, 
WHETHER IN CONTRACT, TORT, NEGLIGENCE, STRICT LIABILITY, 
OR OTHERWISE, SHALL BE LIMITED TO REPAYMENT OF THE 
PURCHASE PRICE OF THE PRODUCT.
TO THE EXTENT CONSISTENT WITH APPLICABLE LAW, BASF AND 
THE SELLER DISCLAIM ANY LIABILITY FOR CONSEQUENTIAL, 
EXEMPLARY, SPECIAL OR INDIRECT DAMAGES RESULTING FROM 
THE USE OR HANDLING OF THIS PRODUCT.
BASF and the Seller offer this product, and the Buyer and User accept it, 
subject to the foregoing Conditions of Sale and Warranty which may be 
varied only by agreement in writing signed by a duly authorized representative 
of BASF. 
1108
Uses with Other Products 
(Tank Mixes)
If this product is used in combination with any other product except as specifi-
cally instructed in writing by BASF, then to the extent consistent with applicable 
law, BASF shall have no liability for any loss, damage or injury arising out of its 
use in any such combination not so specifically specified. If used in combination 
as instructed by BASF, to the extent consistent with applicable law, the liability 
of BASF shall in no manner extend to any damage, loss or injury not directly 
caused by the inclusion of BASF product in such combination use, and in any 
event, to the extent consistent with applicable law, shall be limited to return of 
the amount of the purchase price of the BASF product.