California Private Applicator Certificate (PAC) Exam –
Questions And Correct Answers (Verified Answers)
Plus Rationales 2025/2026 Q&A | Instant Download
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Pesticide Laws & Regulations
1. Which agency regulates pesticide use in California?
A. EPA
B. USDA
C. California Department of Pesticide Regulation (DPR)
D. FDA
California DPR enforces state pesticide laws and works with County Agricultural
Commissioners.
2. Who enforces pesticide regulations at the local level?
A. City police
B. County Agricultural Commissioner
C. Local fire department
D. State legislature
County Agricultural Commissioners conduct inspections, issue permits, and
enforce compliance.
3. A Private Applicator Certificate allows pesticide use:
A. On any property for hire
B. Only on property owned, rented, or controlled for agricultural production
C. In residential neighborhoods
D. For commercial pest control businesses
PAC holders may apply restricted-use pesticides only on their own agricultural
property.
4. Restricted Use Pesticides (RUPs) require:
A. No certification
B. Homeowner approval
,C. Certified applicator supervision or certification
D. Special packaging only
RUPs pose higher risks and require certified applicators.
5. Pesticide use records for RUPs must be kept for at least:
A. 1 year
B. 2 years
C. 5 years
D. 10 years
California requires a minimum 2-year retention for agricultural pesticide use
records.
Label Comprehension
6. The pesticide label is:
A. A suggestion
B. Marketing material
C. A legal document
D. Optional reading
Using a pesticide inconsistent with its label is a violation of federal and state
law.
7. The signal word “Danger” indicates:
A. Slight toxicity
B. Moderate toxicity
C. High toxicity or severe hazard
D. No hazard
“Danger” is the highest toxicity category.
8. Which signal word indicates the lowest toxicity?
A. Danger
B. Warning
C. Caution
D. Notice
“Caution” represents relatively low toxicity.
, 9. The reentry interval (REI) tells you:
A. When to reapply
B. When to irrigate
C. How long before workers may enter without PPE
D. When the pesticide expires
REI protects workers from exposure after application.
10. Pre-harvest interval (PHI) refers to:
A. Time before irrigation
B. Time between application and harvest
C. Worker entry time
D. Storage time
PHI ensures residues decline to safe levels.
Pesticide Safety & Toxicology
11. The most common route of pesticide exposure is:
A. Inhalation
B. Oral
C. Injection
D. Dermal (skin)
Most pesticide exposure occurs through skin contact.
12. Acute toxicity refers to:
A. Long-term exposure effects
B. Effects from a single or short-term exposure
C. Environmental persistence
D. Chronic illness only
Acute toxicity happens quickly after exposure.
13. Chronic toxicity results from:
A. One exposure
B. Repeated or long-term exposure
Questions And Correct Answers (Verified Answers)
Plus Rationales 2025/2026 Q&A | Instant Download
Pesticide Laws & Regulations
1. Which agency regulates pesticide use in California?
A. EPA
B. USDA
C. California Department of Pesticide Regulation (DPR)
D. FDA
California DPR enforces state pesticide laws and works with County Agricultural
Commissioners.
2. Who enforces pesticide regulations at the local level?
A. City police
B. County Agricultural Commissioner
C. Local fire department
D. State legislature
County Agricultural Commissioners conduct inspections, issue permits, and
enforce compliance.
3. A Private Applicator Certificate allows pesticide use:
A. On any property for hire
B. Only on property owned, rented, or controlled for agricultural production
C. In residential neighborhoods
D. For commercial pest control businesses
PAC holders may apply restricted-use pesticides only on their own agricultural
property.
4. Restricted Use Pesticides (RUPs) require:
A. No certification
B. Homeowner approval
,C. Certified applicator supervision or certification
D. Special packaging only
RUPs pose higher risks and require certified applicators.
5. Pesticide use records for RUPs must be kept for at least:
A. 1 year
B. 2 years
C. 5 years
D. 10 years
California requires a minimum 2-year retention for agricultural pesticide use
records.
Label Comprehension
6. The pesticide label is:
A. A suggestion
B. Marketing material
C. A legal document
D. Optional reading
Using a pesticide inconsistent with its label is a violation of federal and state
law.
7. The signal word “Danger” indicates:
A. Slight toxicity
B. Moderate toxicity
C. High toxicity or severe hazard
D. No hazard
“Danger” is the highest toxicity category.
8. Which signal word indicates the lowest toxicity?
A. Danger
B. Warning
C. Caution
D. Notice
“Caution” represents relatively low toxicity.
, 9. The reentry interval (REI) tells you:
A. When to reapply
B. When to irrigate
C. How long before workers may enter without PPE
D. When the pesticide expires
REI protects workers from exposure after application.
10. Pre-harvest interval (PHI) refers to:
A. Time before irrigation
B. Time between application and harvest
C. Worker entry time
D. Storage time
PHI ensures residues decline to safe levels.
Pesticide Safety & Toxicology
11. The most common route of pesticide exposure is:
A. Inhalation
B. Oral
C. Injection
D. Dermal (skin)
Most pesticide exposure occurs through skin contact.
12. Acute toxicity refers to:
A. Long-term exposure effects
B. Effects from a single or short-term exposure
C. Environmental persistence
D. Chronic illness only
Acute toxicity happens quickly after exposure.
13. Chronic toxicity results from:
A. One exposure
B. Repeated or long-term exposure
