Iowa Commercial Applicator License: 100
Core Exam Practice Questions & Answers
This practice exam is designed to help you prepare for the Iowa
Commercial Pesticide Applicator Core Exam. Questions are based on the
Iowa Core Manual, EPA regulations, and state-specific laws.
EXAM OVERVIEW
Detail Information
Governing Iowa Department of
Agency Agriculture and Land
Stewardship (IDALS)
License Types Commercial, Public,
Noncommercial, and
Private Applicators
Certification 3 years
Cycle
2026 Key New exams based on
Change revised manuals;
un-proctored online
exams discontinued
,SECTION 1: APPLICATOR TYPES AND CERTIFICATION
Question 1
What are the four types of pesticide applicators recognized in Iowa?
A. Commercial, Public, Noncommercial, and Private Applicators
B. Commercial, Private, Industrial, and Agricultural Applicators
C. Licensed, Certified, Registered, and Temporary Applicators
D. Structural, Agricultural, Aquatic, and Fumigation Applicators
Answer: A. Commercial, Public, Noncommercial, and Private Applicators
Rationale: Iowa law defines four distinct types of pesticide applicators
based on who they work for and the purpose of the application.
Question 2
What is the role of a Certified Handler under Iowa law?
A. Applies pesticides on property of others
B. Responsible for preparing, mixing, or loading pesticides under
supervision
C. Government employee applying pesticides
D. Uses restricted-use pesticides on agricultural land
Answer: B. Responsible for preparing, mixing, or loading pesticides under
supervision
Rationale: Certified Handlers are individuals employed by a licensed
commercial applicator who handle pesticides under the supervision of a
certified applicator.
,Question 3
What is the recertification cycle for Iowa pesticide applicators?
A. 1 year
B. 2 years
C. 3 years
D. 5 years
Answer: C. 3 years
Rationale: Iowa pesticide applicators must renew their certification every 3
years.
Question 4
The "21-day grace period" for pesticide applicators refers to:
A. A period when applicators can work without certification
B. A period to work under direct supervision while completing certification
requirements
C. A period to apply pesticides without a license
D. A grace period for license renewal
Answer: B. A period to work under direct supervision while completing
certification requirements
Rationale: New employees may work under direct supervision for up to 21
days while completing certification requirements and paying the required
fees.
Question 5
, For how long are valid exam scores maintained on file?
A. 6 months
B. 1 year
C. 2 years
D. 3 years
Answer: B. 1 year
Rationale: Examination scores for individuals not completing certification
requirements or paying required fees are maintained as valid test scores
for a maximum of one year.
Question 6
What is the initial certification fee for a Commercial/Non-Commercial
Applicator in Iowa?
A. $15
B. $25
C. $75
D. $150
Answer: C. $75
Rationale: The commercial/non-commercial application fee is $75 for a
3-year certification.
Question 7
Which type of applicator is required for someone applying pesticides on
their own farm for agricultural production?
Core Exam Practice Questions & Answers
This practice exam is designed to help you prepare for the Iowa
Commercial Pesticide Applicator Core Exam. Questions are based on the
Iowa Core Manual, EPA regulations, and state-specific laws.
EXAM OVERVIEW
Detail Information
Governing Iowa Department of
Agency Agriculture and Land
Stewardship (IDALS)
License Types Commercial, Public,
Noncommercial, and
Private Applicators
Certification 3 years
Cycle
2026 Key New exams based on
Change revised manuals;
un-proctored online
exams discontinued
,SECTION 1: APPLICATOR TYPES AND CERTIFICATION
Question 1
What are the four types of pesticide applicators recognized in Iowa?
A. Commercial, Public, Noncommercial, and Private Applicators
B. Commercial, Private, Industrial, and Agricultural Applicators
C. Licensed, Certified, Registered, and Temporary Applicators
D. Structural, Agricultural, Aquatic, and Fumigation Applicators
Answer: A. Commercial, Public, Noncommercial, and Private Applicators
Rationale: Iowa law defines four distinct types of pesticide applicators
based on who they work for and the purpose of the application.
Question 2
What is the role of a Certified Handler under Iowa law?
A. Applies pesticides on property of others
B. Responsible for preparing, mixing, or loading pesticides under
supervision
C. Government employee applying pesticides
D. Uses restricted-use pesticides on agricultural land
Answer: B. Responsible for preparing, mixing, or loading pesticides under
supervision
Rationale: Certified Handlers are individuals employed by a licensed
commercial applicator who handle pesticides under the supervision of a
certified applicator.
,Question 3
What is the recertification cycle for Iowa pesticide applicators?
A. 1 year
B. 2 years
C. 3 years
D. 5 years
Answer: C. 3 years
Rationale: Iowa pesticide applicators must renew their certification every 3
years.
Question 4
The "21-day grace period" for pesticide applicators refers to:
A. A period when applicators can work without certification
B. A period to work under direct supervision while completing certification
requirements
C. A period to apply pesticides without a license
D. A grace period for license renewal
Answer: B. A period to work under direct supervision while completing
certification requirements
Rationale: New employees may work under direct supervision for up to 21
days while completing certification requirements and paying the required
fees.
Question 5
, For how long are valid exam scores maintained on file?
A. 6 months
B. 1 year
C. 2 years
D. 3 years
Answer: B. 1 year
Rationale: Examination scores for individuals not completing certification
requirements or paying required fees are maintained as valid test scores
for a maximum of one year.
Question 6
What is the initial certification fee for a Commercial/Non-Commercial
Applicator in Iowa?
A. $15
B. $25
C. $75
D. $150
Answer: C. $75
Rationale: The commercial/non-commercial application fee is $75 for a
3-year certification.
Question 7
Which type of applicator is required for someone applying pesticides on
their own farm for agricultural production?
