Pesticide Use Enforcement
CDFA Exam Study Guide –
Practice Questions with
Verified Answers. GRADED A+.
Latest 2026/2027 Update
The difference between California's laws and the Department of Pesticide
Regulation's regulations is that laws are _____________.
Passed by the California legislature and regulations are adopted by the
Department of Pesticide Regulation to carry out the laws.
Which of the following is NOT one of the purposes of California's pesticide and
pest control laws and regulations?
Encouraging people to use more pesticides
A cooperating agency that helps the Department of Pesticide Regulation
enforce pesticide use laws and regulations in California is the ___________.
County Agricultural Commissioner
County Agricultural Commissioners may adopt supplemental pesticide
regulations with the approval of the ______.
Department of Pesticide Regulation
Which of the following is considered to be pesticide labeling?
The federal Worker Protection Standard.
,When a Pesticide Registrant allows a pesticide product registration to lapse,
Pest Control Dealers __________.
Can sell and deliver the pesticide product for two years
When a pesticide product registration is cancelled, the sale and use of this
product may _____________.
Continue under conditions imposed by the regulatory agency responsible for
the cancellation.
A PCA gives recommendation. PCO does the work. Who gets the violation?
PCA and PCO
What formulation is least likely to cause plant injury?
Wettable powder
What is not required on a PCA's recommendation?
Number of pests
If a pilot works 30 hours in 30 days, what is the employer required to provide at
the facility?
Water washing facility on site
What permit is required for a grower who applies pesticides to his own crops
and wants to do his neighbor's field?
No-fee permit
What types of pesticide formulas damage nozzles?
Concentrated oils
A pesticide in Toxicity Category 3 would have which of the following words on
its label?
"Caution"
How many people must be present when disassembling a fumigation tent?
Two
,When a fumigated enclosed space is being entered to facilitate aeration, how
many trained employees must be present?
Two
Full-body chemical-resistant protective clothing must be worn by employees
who handle minimal exposure pesticides, except those who __________.
Are injecting the pesticides into the soil when using vehicle-mounted or towed
equipment
The nozzle orifice size when applying pesticide X by air at 60mph should not
exceed _________.
1/16"
Chlorinated hydrocarbons have what problem with usage?
Accumulate in fat tissues of mammals and birds
When to use lower concentration of soil pesticide?
When spraying sandy soil
What is not required in a written pesticide respirator program?
Procedures for repairing damaged respirator cartridges
Who is responsible for providing laundering of coveralls used by pesticide
handler employees?
Employers
In which of the following situations is there an exception to the regulation
requiring employee handlers to wear eye protection when handling pesticides?
Working in an enclosed cab
An Agricultural Pest Control Adviser License is required if you __________.
Solicit pest control services or pesticide sales for agricultural uses
Handlers who properly mix pesticides packaged in water-soluble packets are
considered to be using ___________.
A closed mixing system
, DPR is responsible for ______________.
Writing and implementing regulations that carry out the requirements of the
law.
What is pre-harvest interval?
Period of time after an application of a pesticide to a crop, during which
harvest is prohibited.
A cooperating agency that helps the Department of Pesticide Regulation
enforce pesticide use laws and regulations in California is the ____________.
County Agricultural Commissioner
When a Pesticide Registrant allows a pesticide product registration to lapse,
Pest Control Dealers ___________.
Can sell and deliver the pesticide product for two years
When a pesticide product registration is cancelled, the sale and use of this
product _________.
May continue under conditions imposed by the regulatory agency responsible
for the cancellation
On pesticide labeling the signal word ___________.
Signifies the relative acute toxicity of the pesticide product
Making an application of a pesticide product at a lower rate than specified in
labeling directions is __________.
Always allowed
Exceeding the maximum application rate of a pesticide as per its labeling is
__________.
Illegal
The U.S. Environmental Protection Agency may classify a pesticide as a
restricted use pesticide if it _______.
Presents a significant dermal hazard to applicators
CDFA Exam Study Guide –
Practice Questions with
Verified Answers. GRADED A+.
Latest 2026/2027 Update
The difference between California's laws and the Department of Pesticide
Regulation's regulations is that laws are _____________.
Passed by the California legislature and regulations are adopted by the
Department of Pesticide Regulation to carry out the laws.
Which of the following is NOT one of the purposes of California's pesticide and
pest control laws and regulations?
Encouraging people to use more pesticides
A cooperating agency that helps the Department of Pesticide Regulation
enforce pesticide use laws and regulations in California is the ___________.
County Agricultural Commissioner
County Agricultural Commissioners may adopt supplemental pesticide
regulations with the approval of the ______.
Department of Pesticide Regulation
Which of the following is considered to be pesticide labeling?
The federal Worker Protection Standard.
,When a Pesticide Registrant allows a pesticide product registration to lapse,
Pest Control Dealers __________.
Can sell and deliver the pesticide product for two years
When a pesticide product registration is cancelled, the sale and use of this
product may _____________.
Continue under conditions imposed by the regulatory agency responsible for
the cancellation.
A PCA gives recommendation. PCO does the work. Who gets the violation?
PCA and PCO
What formulation is least likely to cause plant injury?
Wettable powder
What is not required on a PCA's recommendation?
Number of pests
If a pilot works 30 hours in 30 days, what is the employer required to provide at
the facility?
Water washing facility on site
What permit is required for a grower who applies pesticides to his own crops
and wants to do his neighbor's field?
No-fee permit
What types of pesticide formulas damage nozzles?
Concentrated oils
A pesticide in Toxicity Category 3 would have which of the following words on
its label?
"Caution"
How many people must be present when disassembling a fumigation tent?
Two
,When a fumigated enclosed space is being entered to facilitate aeration, how
many trained employees must be present?
Two
Full-body chemical-resistant protective clothing must be worn by employees
who handle minimal exposure pesticides, except those who __________.
Are injecting the pesticides into the soil when using vehicle-mounted or towed
equipment
The nozzle orifice size when applying pesticide X by air at 60mph should not
exceed _________.
1/16"
Chlorinated hydrocarbons have what problem with usage?
Accumulate in fat tissues of mammals and birds
When to use lower concentration of soil pesticide?
When spraying sandy soil
What is not required in a written pesticide respirator program?
Procedures for repairing damaged respirator cartridges
Who is responsible for providing laundering of coveralls used by pesticide
handler employees?
Employers
In which of the following situations is there an exception to the regulation
requiring employee handlers to wear eye protection when handling pesticides?
Working in an enclosed cab
An Agricultural Pest Control Adviser License is required if you __________.
Solicit pest control services or pesticide sales for agricultural uses
Handlers who properly mix pesticides packaged in water-soluble packets are
considered to be using ___________.
A closed mixing system
, DPR is responsible for ______________.
Writing and implementing regulations that carry out the requirements of the
law.
What is pre-harvest interval?
Period of time after an application of a pesticide to a crop, during which
harvest is prohibited.
A cooperating agency that helps the Department of Pesticide Regulation
enforce pesticide use laws and regulations in California is the ____________.
County Agricultural Commissioner
When a Pesticide Registrant allows a pesticide product registration to lapse,
Pest Control Dealers ___________.
Can sell and deliver the pesticide product for two years
When a pesticide product registration is cancelled, the sale and use of this
product _________.
May continue under conditions imposed by the regulatory agency responsible
for the cancellation
On pesticide labeling the signal word ___________.
Signifies the relative acute toxicity of the pesticide product
Making an application of a pesticide product at a lower rate than specified in
labeling directions is __________.
Always allowed
Exceeding the maximum application rate of a pesticide as per its labeling is
__________.
Illegal
The U.S. Environmental Protection Agency may classify a pesticide as a
restricted use pesticide if it _______.
Presents a significant dermal hazard to applicators
