Q1. Which federal law is the primary legislation governing pesticide
registration and use in the United States?
A. Clean Water Act
B. Federal Insecticide, Fungicide, and Rodenticide Act (FIFRA)
C. Toxic Substances Control Act (TSCA)
D. Safe Drinking Water Act
✓ ANSWER: B FIFRA is the primary federal law that governs the registration,
sale, distribution, and use of pesticides in the United States.
Q2. Under FIFRA, who is responsible for registering pesticides before they
can be sold or distributed?
A. State departments of agriculture
B. The Environmental Protection Agency (EPA)
C. The Department of Agriculture (USDA)
D. The Food and Drug Administration (FDA)
✓ ANSWER: B The EPA is responsible for registering pesticides under
FIFRA, ensuring they meet safety and efficacy standards.
Q3. A pesticide label is considered a legal document because:
A. It contains the manufacturer's address
B. It lists the active ingredients
C. It is enforceable under federal law and violating it is illegal
D. It describes the chemical formula
✓ ANSWER: C Under FIFRA, using a pesticide in a manner inconsistent with
its label is a violation of federal law. The label is the law.
Q4. Which statement about pesticide labels is MOST accurate?
A. Labels are suggestions, not requirements
B. You may use a pesticide on crops not listed on the label if needed
C. You must follow all label directions and restrictions
D. Labels only apply to commercial applicators
✓ ANSWER: C All users of pesticides, commercial or otherwise, must follow
all label directions and restrictions.
Pesticide License Exam 2025/2026 — Page 1
,Q5. The Worker Protection Standard (WPS) is designed to protect:
A. Pesticide manufacturers from liability
B. Agricultural workers and pesticide handlers from occupational
exposure
C. Consumers from pesticide residues in food
D. Wildlife from pesticide runoff
✓ ANSWER: B The WPS is an EPA regulation designed to reduce the risk of
pesticide poisonings and injuries among agricultural workers and pesticide
handlers.
Q6. Under the Worker Protection Standard, what is the minimum age for
pesticide handlers?
A. 14 years
B. 16 years
C. 18 years
D. 21 years
✓ ANSWER: C The WPS requires that pesticide handlers must be at least 18
years old.
Q7. A Restricted Use Pesticide (RUP) can only be purchased and used by:
A. Anyone with a valid ID
B. Licensed or certified applicators, or persons under their direct
supervision
C. Farmers with more than 50 acres
D. State employees only
✓ ANSWER: B Restricted Use Pesticides are restricted to certified applicators
or persons under their direct supervision due to their potential hazard.
Q8. When must an applicator keep records for Restricted Use Pesticide
applications?
A. Only for applications over 5 gallons
B. For commercial applications only
C. For all RUP applications; records must be kept for 2 years
D. Records are not required
✓ ANSWER: C FIFRA requires that certified applicators maintain records of
all RUP applications for a minimum of 2 years.
Q9. Which document must accompany a pesticide from manufacturer to
end user?
Pesticide License Exam 2025/2026 — Page 2
, A. Application permit
B. Safety Data Sheet (SDS)
C. Pesticide registration certificate
D. Certificate of analysis
✓ ANSWER: B Safety Data Sheets (formerly MSDS) must accompany
hazardous chemicals including pesticides and must be available to workers.
Q10. The re-entry interval (REI) on a pesticide label refers to:
A. The time before the pesticide can be reapplied
B. The time workers must wait before entering a treated area
C. The shelf life of the pesticide
D. The time required to mix the pesticide
✓ ANSWER: B The REI specifies the minimum time that must pass after a
pesticide application before workers may enter the treated area without
protective equipment.
SECTION 2: PESTICIDE SAFETY
Q11. What is the FIRST action to take if pesticide concentrate splashes into
your eyes?
A. Apply eye drops
B. Flush immediately with large amounts of clean water for 15–20
minutes
C. Cover the eye and seek medical attention
D. Rinse with milk
✓ ANSWER: B Immediate flushing with large amounts of clean water for at
least 15–20 minutes is the first critical step for eye exposure to pesticides.
Q12. Which route of pesticide exposure is MOST common among
applicators?
A. Inhalation
B. Ingestion
C. Dermal (skin) absorption
D. Eye contact
✓ ANSWER: C Dermal exposure is the most common route of pesticide
exposure for applicators, occurring through skin contact during mixing, loading,
and application.
Q13. The signal word DANGER on a pesticide label indicates:
Pesticide License Exam 2025/2026 — Page 3
, A. Low toxicity
B. Moderate toxicity
C. High toxicity or highly toxic (Category I)
D. The pesticide is restricted use only
✓ ANSWER: C DANGER is the signal word for the most toxic pesticides
(Toxicity Category I), including those that are highly toxic by any route or are
severely corrosive.
Q14. Which signal word indicates the LOWEST level of toxicity?
A. DANGER
B. WARNING
C. CAUTION
D. NOTICE
✓ ANSWER: C CAUTION is used on pesticide labels for products in Toxicity
Categories III and IV, indicating the lowest level of toxicity among signal word
categories.
Q15. What does LD50 measure?
A. The amount of pesticide needed to kill all test animals
B. The lethal dose that kills 50% of a test population
C. The lowest dose that causes any effect
D. The maximum safe dose for humans
✓ ANSWER: B LD50 (Lethal Dose 50) is the dose of a substance that kills
50% of a test animal population, used as a standard measure of acute toxicity.
Q16. A lower LD50 value means a pesticide is:
A. Less toxic
B. More toxic
C. More water-soluble
D. More environmentally persistent
✓ ANSWER: B A lower LD50 value means it takes less of the substance to kill
50% of the test population, indicating higher toxicity.
Q17. Which personal protective equipment (PPE) is MOST important when
mixing concentrated pesticides?
A. Steel-toed boots
B. Chemical-resistant gloves and eye protection
C. A hard hat
D. Hearing protection
Pesticide License Exam 2025/2026 — Page 4
registration and use in the United States?
A. Clean Water Act
B. Federal Insecticide, Fungicide, and Rodenticide Act (FIFRA)
C. Toxic Substances Control Act (TSCA)
D. Safe Drinking Water Act
✓ ANSWER: B FIFRA is the primary federal law that governs the registration,
sale, distribution, and use of pesticides in the United States.
Q2. Under FIFRA, who is responsible for registering pesticides before they
can be sold or distributed?
A. State departments of agriculture
B. The Environmental Protection Agency (EPA)
C. The Department of Agriculture (USDA)
D. The Food and Drug Administration (FDA)
✓ ANSWER: B The EPA is responsible for registering pesticides under
FIFRA, ensuring they meet safety and efficacy standards.
Q3. A pesticide label is considered a legal document because:
A. It contains the manufacturer's address
B. It lists the active ingredients
C. It is enforceable under federal law and violating it is illegal
D. It describes the chemical formula
✓ ANSWER: C Under FIFRA, using a pesticide in a manner inconsistent with
its label is a violation of federal law. The label is the law.
Q4. Which statement about pesticide labels is MOST accurate?
A. Labels are suggestions, not requirements
B. You may use a pesticide on crops not listed on the label if needed
C. You must follow all label directions and restrictions
D. Labels only apply to commercial applicators
✓ ANSWER: C All users of pesticides, commercial or otherwise, must follow
all label directions and restrictions.
Pesticide License Exam 2025/2026 — Page 1
,Q5. The Worker Protection Standard (WPS) is designed to protect:
A. Pesticide manufacturers from liability
B. Agricultural workers and pesticide handlers from occupational
exposure
C. Consumers from pesticide residues in food
D. Wildlife from pesticide runoff
✓ ANSWER: B The WPS is an EPA regulation designed to reduce the risk of
pesticide poisonings and injuries among agricultural workers and pesticide
handlers.
Q6. Under the Worker Protection Standard, what is the minimum age for
pesticide handlers?
A. 14 years
B. 16 years
C. 18 years
D. 21 years
✓ ANSWER: C The WPS requires that pesticide handlers must be at least 18
years old.
Q7. A Restricted Use Pesticide (RUP) can only be purchased and used by:
A. Anyone with a valid ID
B. Licensed or certified applicators, or persons under their direct
supervision
C. Farmers with more than 50 acres
D. State employees only
✓ ANSWER: B Restricted Use Pesticides are restricted to certified applicators
or persons under their direct supervision due to their potential hazard.
Q8. When must an applicator keep records for Restricted Use Pesticide
applications?
A. Only for applications over 5 gallons
B. For commercial applications only
C. For all RUP applications; records must be kept for 2 years
D. Records are not required
✓ ANSWER: C FIFRA requires that certified applicators maintain records of
all RUP applications for a minimum of 2 years.
Q9. Which document must accompany a pesticide from manufacturer to
end user?
Pesticide License Exam 2025/2026 — Page 2
, A. Application permit
B. Safety Data Sheet (SDS)
C. Pesticide registration certificate
D. Certificate of analysis
✓ ANSWER: B Safety Data Sheets (formerly MSDS) must accompany
hazardous chemicals including pesticides and must be available to workers.
Q10. The re-entry interval (REI) on a pesticide label refers to:
A. The time before the pesticide can be reapplied
B. The time workers must wait before entering a treated area
C. The shelf life of the pesticide
D. The time required to mix the pesticide
✓ ANSWER: B The REI specifies the minimum time that must pass after a
pesticide application before workers may enter the treated area without
protective equipment.
SECTION 2: PESTICIDE SAFETY
Q11. What is the FIRST action to take if pesticide concentrate splashes into
your eyes?
A. Apply eye drops
B. Flush immediately with large amounts of clean water for 15–20
minutes
C. Cover the eye and seek medical attention
D. Rinse with milk
✓ ANSWER: B Immediate flushing with large amounts of clean water for at
least 15–20 minutes is the first critical step for eye exposure to pesticides.
Q12. Which route of pesticide exposure is MOST common among
applicators?
A. Inhalation
B. Ingestion
C. Dermal (skin) absorption
D. Eye contact
✓ ANSWER: C Dermal exposure is the most common route of pesticide
exposure for applicators, occurring through skin contact during mixing, loading,
and application.
Q13. The signal word DANGER on a pesticide label indicates:
Pesticide License Exam 2025/2026 — Page 3
, A. Low toxicity
B. Moderate toxicity
C. High toxicity or highly toxic (Category I)
D. The pesticide is restricted use only
✓ ANSWER: C DANGER is the signal word for the most toxic pesticides
(Toxicity Category I), including those that are highly toxic by any route or are
severely corrosive.
Q14. Which signal word indicates the LOWEST level of toxicity?
A. DANGER
B. WARNING
C. CAUTION
D. NOTICE
✓ ANSWER: C CAUTION is used on pesticide labels for products in Toxicity
Categories III and IV, indicating the lowest level of toxicity among signal word
categories.
Q15. What does LD50 measure?
A. The amount of pesticide needed to kill all test animals
B. The lethal dose that kills 50% of a test population
C. The lowest dose that causes any effect
D. The maximum safe dose for humans
✓ ANSWER: B LD50 (Lethal Dose 50) is the dose of a substance that kills
50% of a test animal population, used as a standard measure of acute toxicity.
Q16. A lower LD50 value means a pesticide is:
A. Less toxic
B. More toxic
C. More water-soluble
D. More environmentally persistent
✓ ANSWER: B A lower LD50 value means it takes less of the substance to kill
50% of the test population, indicating higher toxicity.
Q17. Which personal protective equipment (PPE) is MOST important when
mixing concentrated pesticides?
A. Steel-toed boots
B. Chemical-resistant gloves and eye protection
C. A hard hat
D. Hearing protection
Pesticide License Exam 2025/2026 — Page 4
