Oregon Pesticide Laws and Safety Exam
2026/2027 | Verified Questions & Answers
with Complete Study Guide for Oregon
Applicator Certification
• This study guide contains 200 verified multiple-choice questions covering all topics
tested in the Oregon Pesticide Applicator Certification Exam — each question
includes 5 options (A–E), a clearly highlighted correct answer, and a EXPERT
RATIONALE to reinforce understanding.
• Use this material by reading each question carefully, selecting your answer before
checking the highlighted correct option, then reading the EXPERT RATIONALE to
strengthen your knowledge before sitting the 2026/2027 exam.
OREGON PESTICIDE LAWS AND SAFETY EXAM 2026/2027 Verified Questions &
Answers — Complete Study Guide
1. Which Oregon state agency is primarily responsible for regulating pesticide
use and licensing pesticide applicators?
A. Oregon Department of Environmental Quality
B. Oregon Department of Human Services
C. Oregon Water Resources Department
D. Oregon Department of Agriculture
E. Oregon Department of Forestry
D. Oregon Department of Agriculture
EXPERT RATIONALE: The Oregon Department of Agriculture (ODA) is the lead agency for
pesticide regulation in Oregon, including licensing applicators, registering pesticides, and
enforcing pesticide laws under ORS Chapter 634.
2. Under Oregon law, who is required to have a pesticide applicator's license?
,A. Anyone who purchases pesticides from a retail store
B. Anyone who uses pesticides only on their own property for personal use
C. Anyone who applies pesticides for hire or applies restricted-use pesticides
D. Anyone who stores pesticides in a commercial warehouse
E. Anyone who sells pesticides at a farm supply store
C. Anyone who applies pesticides for hire or applies restricted-use
pesticides
EXPERT RATIONALE: Oregon law requires licensure for commercial applicators (those
applying pesticides for compensation) and for any applicator using restricted-use
pesticides, regardless of whether payment is involved.
3. What is the primary purpose of Oregon's Pesticide Control Act (ORS Chapter
634)?
A. To regulate the sale of fertilizers and soil amendments
B. To protect human health, property, and the environment from pesticide misuse
C. To set maximum allowable pesticide residues on food products
D. To control the importation of exotic plant species
E. To regulate groundwater extraction for irrigation
B. To protect human health, property, and the environment from pesticide
misuse EXPERT RATIONALE: ORS Chapter 634 establishes Oregon's framework for
pesticide regulation with the overarching goal of protecting people, property, and the
environment while allowing for the beneficial use of pesticides.
4. A pesticide label states "KEEP OUT OF REACH OF CHILDREN." This statement
is:
A. A suggested precaution that applicators may choose to follow
,B. Required by federal law and must appear on all pesticide labels
C. Only required on pesticides classified as restricted-use
D. Voluntary language added by manufacturers for marketing purposes
E. Only applicable when children are present at the application site
B. Required by federal law and must appear on all pesticide labels
EXPERT RATIONALE: The statement "KEEP OUT OF REACH OF CHILDREN" is mandated by
the Federal Insecticide, Fungicide, and Rodenticide Act (FIFRA) and must appear on every
registered pesticide product label.
5. What does the signal word "DANGER" on a pesticide label indicate?
A. The pesticide is moderately toxic
B. The pesticide is slightly toxic and poses minimal risk
C. The pesticide is highly toxic and can cause severe injury or death
D. The pesticide is a restricted-use product only
E. The pesticide has a strong odor and may cause irritation
C. The pesticide is highly toxic and can cause severe injury or death
EXPERT RATIONALE: "DANGER" (sometimes accompanied by "POISON") is the most
severe signal word, indicating the product is highly toxic by ingestion, inhalation, skin
absorption, or can cause severe eye or skin damage.
6. Which signal word indicates the lowest level of acute toxicity on a pesticide
label?
A. DANGER
B. WARNING
C. CAUTION
, D. NOTICE
E. ALERT
C. CAUTION
EXPERT RATIONALE: The three required signal words in order of increasing hazard are
CAUTION (lowest), WARNING (moderate), and DANGER (highest). NOTICE and ALERT are
not EPA-recognized pesticide signal words.
7. Under FIFRA, the pesticide label is considered:
A. A general guideline that applicators should try to follow
B. A legal document and the law — applicators must follow label directions
C. A manufacturer's recommendation with no legal standing
D. Applicable only to commercial applicators, not private ones
E. Valid only during the pesticide's registered use period
B. A legal document and the law — applicators must follow label directions
EXPERT RATIONALE: FIFRA requires that pesticide products be used in accordance with
label directions. The phrase "the label is the law" reflects this legal requirement, and
violations can result in civil or criminal penalties.
8. What is a "restricted-use pesticide" (RUP)?
A. A pesticide that can only be used indoors
B. A pesticide available only to homeowners in limited quantities
C. A pesticide that may cause unreasonable harm to people or the environment
without additional restrictions
D. A pesticide that is banned in Oregon but allowed federally
E. A pesticide that can only be applied during daylight hours
2026/2027 | Verified Questions & Answers
with Complete Study Guide for Oregon
Applicator Certification
• This study guide contains 200 verified multiple-choice questions covering all topics
tested in the Oregon Pesticide Applicator Certification Exam — each question
includes 5 options (A–E), a clearly highlighted correct answer, and a EXPERT
RATIONALE to reinforce understanding.
• Use this material by reading each question carefully, selecting your answer before
checking the highlighted correct option, then reading the EXPERT RATIONALE to
strengthen your knowledge before sitting the 2026/2027 exam.
OREGON PESTICIDE LAWS AND SAFETY EXAM 2026/2027 Verified Questions &
Answers — Complete Study Guide
1. Which Oregon state agency is primarily responsible for regulating pesticide
use and licensing pesticide applicators?
A. Oregon Department of Environmental Quality
B. Oregon Department of Human Services
C. Oregon Water Resources Department
D. Oregon Department of Agriculture
E. Oregon Department of Forestry
D. Oregon Department of Agriculture
EXPERT RATIONALE: The Oregon Department of Agriculture (ODA) is the lead agency for
pesticide regulation in Oregon, including licensing applicators, registering pesticides, and
enforcing pesticide laws under ORS Chapter 634.
2. Under Oregon law, who is required to have a pesticide applicator's license?
,A. Anyone who purchases pesticides from a retail store
B. Anyone who uses pesticides only on their own property for personal use
C. Anyone who applies pesticides for hire or applies restricted-use pesticides
D. Anyone who stores pesticides in a commercial warehouse
E. Anyone who sells pesticides at a farm supply store
C. Anyone who applies pesticides for hire or applies restricted-use
pesticides
EXPERT RATIONALE: Oregon law requires licensure for commercial applicators (those
applying pesticides for compensation) and for any applicator using restricted-use
pesticides, regardless of whether payment is involved.
3. What is the primary purpose of Oregon's Pesticide Control Act (ORS Chapter
634)?
A. To regulate the sale of fertilizers and soil amendments
B. To protect human health, property, and the environment from pesticide misuse
C. To set maximum allowable pesticide residues on food products
D. To control the importation of exotic plant species
E. To regulate groundwater extraction for irrigation
B. To protect human health, property, and the environment from pesticide
misuse EXPERT RATIONALE: ORS Chapter 634 establishes Oregon's framework for
pesticide regulation with the overarching goal of protecting people, property, and the
environment while allowing for the beneficial use of pesticides.
4. A pesticide label states "KEEP OUT OF REACH OF CHILDREN." This statement
is:
A. A suggested precaution that applicators may choose to follow
,B. Required by federal law and must appear on all pesticide labels
C. Only required on pesticides classified as restricted-use
D. Voluntary language added by manufacturers for marketing purposes
E. Only applicable when children are present at the application site
B. Required by federal law and must appear on all pesticide labels
EXPERT RATIONALE: The statement "KEEP OUT OF REACH OF CHILDREN" is mandated by
the Federal Insecticide, Fungicide, and Rodenticide Act (FIFRA) and must appear on every
registered pesticide product label.
5. What does the signal word "DANGER" on a pesticide label indicate?
A. The pesticide is moderately toxic
B. The pesticide is slightly toxic and poses minimal risk
C. The pesticide is highly toxic and can cause severe injury or death
D. The pesticide is a restricted-use product only
E. The pesticide has a strong odor and may cause irritation
C. The pesticide is highly toxic and can cause severe injury or death
EXPERT RATIONALE: "DANGER" (sometimes accompanied by "POISON") is the most
severe signal word, indicating the product is highly toxic by ingestion, inhalation, skin
absorption, or can cause severe eye or skin damage.
6. Which signal word indicates the lowest level of acute toxicity on a pesticide
label?
A. DANGER
B. WARNING
C. CAUTION
, D. NOTICE
E. ALERT
C. CAUTION
EXPERT RATIONALE: The three required signal words in order of increasing hazard are
CAUTION (lowest), WARNING (moderate), and DANGER (highest). NOTICE and ALERT are
not EPA-recognized pesticide signal words.
7. Under FIFRA, the pesticide label is considered:
A. A general guideline that applicators should try to follow
B. A legal document and the law — applicators must follow label directions
C. A manufacturer's recommendation with no legal standing
D. Applicable only to commercial applicators, not private ones
E. Valid only during the pesticide's registered use period
B. A legal document and the law — applicators must follow label directions
EXPERT RATIONALE: FIFRA requires that pesticide products be used in accordance with
label directions. The phrase "the label is the law" reflects this legal requirement, and
violations can result in civil or criminal penalties.
8. What is a "restricted-use pesticide" (RUP)?
A. A pesticide that can only be used indoors
B. A pesticide available only to homeowners in limited quantities
C. A pesticide that may cause unreasonable harm to people or the environment
without additional restrictions
D. A pesticide that is banned in Oregon but allowed federally
E. A pesticide that can only be applied during daylight hours
