CALIFORNIA QUALIFIED APPLICATOR CERTIFICATE
(QAC) EXAM | ALL PRACTICE QUESTIONS AND
ANSWERS | COMPLETE STUDYGUIDE 2026/2027
1. Which California credential is generally required for an individual who applies or
supervises the application of federally restricted-use pesticides or state restricted materials
in circumstances outside the private-applicator definition?
A. Pest Control Business License
B. Qualified Applicator Certificate
C. Agricultural Pest Control Adviser License
D. Pesticide Dealer License
The Qualified Applicator Certificate (QAC) is required for qualifying commercial pesticide
application or supervision activities when the individual is not operating within the private-
applicator definition.
2. Before admission to a California QAC examination, an applicant must generally meet
which minimum age requirement?
A. 16 years old
B. 17 years old
C. 18 years old
D. 21 years old
California DPR requires an applicant for a QAC to be at least 18 years old before admission to
the examination.
3. Which examination combination is generally required to obtain a QAC?
A. Laws, Regulations, and Basic Principles plus at least one pest-control category
B. Two pest-control category examinations only
C. One category examination only
D. Laws and Regulations only
A QAC applicant generally must pass the Laws, Regulations, and Basic Principles examination
and at least one applicable pest-control category examination.
4. What minimum score is required on the applicable QAC examinations?
A. 60 percent
B. 65 percent
,C. 68 percent
D. 70 percent
California DPR identifies 70 percent as the passing score for the required QAC examinations.
5. A pesticide label directs an applicator to use a specific rate that differs from the
applicator's normal practice. What should the applicator do?
A. Use the lower rate automatically
B. Follow the pesticide label directions
C. Use the applicator's preferred rate
D. Ask the customer which rate to use
The pesticide label establishes legally enforceable directions for use. Applicators must follow
applicable label requirements rather than substituting personal preferences.
6. Which action best represents integrated pest management (IPM)?
A. Applying pesticides on a fixed calendar regardless of pest activity
B. Selecting the most toxic pesticide available
C. Combining monitoring, prevention, cultural practices, and appropriately timed controls
D. Treating every pest sighting immediately with a broad-spectrum pesticide
IPM uses monitoring and multiple compatible management strategies to prevent or suppress
pests while reducing unnecessary pesticide use.
7. An applicator discovers that the pesticide container label is unreadable. What is the most
appropriate action?
A. Estimate the directions from memory
B. Use the pesticide at half rate
C. Ask another applicator to guess the rate
D. Obtain reliable label information before using the product
Accurate label directions are essential for lawful and safe application. An applicator should
not guess critical use instructions.
8. Which category covers pesticide applications associated with residential, industrial, and
institutional settings?
A. Category A
B. Category B
C. Category D
D. Category K
,Category A covers Residential, Industrial, and Institutional Pest Control under California's QAC
category structure.
9. A worker is preparing to mix a pesticide and notices that required protective equipment
is unavailable. What is the best decision?
A. Proceed carefully without it
B. Substitute ordinary clothing
C. Delay the task until required protective equipment is available
D. Reduce the pesticide concentration
Required protective equipment is part of safe pesticide handling. The absence of required PPE
is a reason to stop and correct the condition before proceeding.
10. Which category primarily addresses landscape maintenance pest control?
A. Category A
B. Category B
C. Category E
D. Category J
Category B is Landscape Maintenance Pest Control.
11. Why is calibration important before applying a pesticide?
A. It guarantees that pests are completely eliminated
B. It changes the pesticide's active ingredient
C. It helps ensure the intended application rate is delivered accurately
D. It eliminates the need to read the label
Proper calibration helps the applicator deliver the intended amount of pesticide over the
intended area, reducing under- and over-application risks.
12. During a pre-application inspection, an applicator notices a drainage channel
immediately adjacent to the treatment area. What should the applicator do first?
A. Ignore it because drainage channels are common
B. Increase the application rate
C. Spray the channel to prevent pests
D. Evaluate the label, site conditions, and potential for contamination before proceeding
Sensitive areas and pathways for pesticide movement must be considered before treatment.
The label and site-specific conditions determine whether application is appropriate.
13. Which practice most directly reduces pesticide drift?
, A. Increasing spray pressure
B. Using appropriate droplet size and application conditions
C. Spraying during strong winds
D. Increasing boom height
Appropriate droplet size, equipment settings, wind conditions, and application technique can
substantially reduce off-target movement.
14. A pesticide applicator is asked by a customer to apply a product at twice the labeled
rate because the customer wants faster control. What should the applicator do?
A. Apply the requested rate
B. Apply twice the rate only in heavily infested areas
C. Refuse the off-label rate and follow the legally applicable label
D. Mix two products instead
The applicator must not knowingly exceed a pesticide label's permitted use rate. Customer
preference does not override legal pesticide-use requirements.
15. Which condition presents the greatest immediate concern when spraying near a
sensitive crop?
A. Strong winds moving toward the crop
B. Mild temperature
C. Clean spray equipment
D. Adequate water supply
Wind moving toward a sensitive crop can carry pesticide droplets or vapors into the crop and
create off-target injury.
16. What is the primary purpose of a pesticide label?
A. To advertise the product
B. To provide legally required directions, precautions, and restrictions for use
C. To replace applicator training
D. To identify the customer's preferred application method
The label communicates legally enforceable directions and safety information necessary for
proper pesticide use.
17. An applicator has finished spraying but discovers pesticide residue on the outside of a
glove. What should occur next?
A. Continue working until the end of the day
B. Wipe the glove on clothing
(QAC) EXAM | ALL PRACTICE QUESTIONS AND
ANSWERS | COMPLETE STUDYGUIDE 2026/2027
1. Which California credential is generally required for an individual who applies or
supervises the application of federally restricted-use pesticides or state restricted materials
in circumstances outside the private-applicator definition?
A. Pest Control Business License
B. Qualified Applicator Certificate
C. Agricultural Pest Control Adviser License
D. Pesticide Dealer License
The Qualified Applicator Certificate (QAC) is required for qualifying commercial pesticide
application or supervision activities when the individual is not operating within the private-
applicator definition.
2. Before admission to a California QAC examination, an applicant must generally meet
which minimum age requirement?
A. 16 years old
B. 17 years old
C. 18 years old
D. 21 years old
California DPR requires an applicant for a QAC to be at least 18 years old before admission to
the examination.
3. Which examination combination is generally required to obtain a QAC?
A. Laws, Regulations, and Basic Principles plus at least one pest-control category
B. Two pest-control category examinations only
C. One category examination only
D. Laws and Regulations only
A QAC applicant generally must pass the Laws, Regulations, and Basic Principles examination
and at least one applicable pest-control category examination.
4. What minimum score is required on the applicable QAC examinations?
A. 60 percent
B. 65 percent
,C. 68 percent
D. 70 percent
California DPR identifies 70 percent as the passing score for the required QAC examinations.
5. A pesticide label directs an applicator to use a specific rate that differs from the
applicator's normal practice. What should the applicator do?
A. Use the lower rate automatically
B. Follow the pesticide label directions
C. Use the applicator's preferred rate
D. Ask the customer which rate to use
The pesticide label establishes legally enforceable directions for use. Applicators must follow
applicable label requirements rather than substituting personal preferences.
6. Which action best represents integrated pest management (IPM)?
A. Applying pesticides on a fixed calendar regardless of pest activity
B. Selecting the most toxic pesticide available
C. Combining monitoring, prevention, cultural practices, and appropriately timed controls
D. Treating every pest sighting immediately with a broad-spectrum pesticide
IPM uses monitoring and multiple compatible management strategies to prevent or suppress
pests while reducing unnecessary pesticide use.
7. An applicator discovers that the pesticide container label is unreadable. What is the most
appropriate action?
A. Estimate the directions from memory
B. Use the pesticide at half rate
C. Ask another applicator to guess the rate
D. Obtain reliable label information before using the product
Accurate label directions are essential for lawful and safe application. An applicator should
not guess critical use instructions.
8. Which category covers pesticide applications associated with residential, industrial, and
institutional settings?
A. Category A
B. Category B
C. Category D
D. Category K
,Category A covers Residential, Industrial, and Institutional Pest Control under California's QAC
category structure.
9. A worker is preparing to mix a pesticide and notices that required protective equipment
is unavailable. What is the best decision?
A. Proceed carefully without it
B. Substitute ordinary clothing
C. Delay the task until required protective equipment is available
D. Reduce the pesticide concentration
Required protective equipment is part of safe pesticide handling. The absence of required PPE
is a reason to stop and correct the condition before proceeding.
10. Which category primarily addresses landscape maintenance pest control?
A. Category A
B. Category B
C. Category E
D. Category J
Category B is Landscape Maintenance Pest Control.
11. Why is calibration important before applying a pesticide?
A. It guarantees that pests are completely eliminated
B. It changes the pesticide's active ingredient
C. It helps ensure the intended application rate is delivered accurately
D. It eliminates the need to read the label
Proper calibration helps the applicator deliver the intended amount of pesticide over the
intended area, reducing under- and over-application risks.
12. During a pre-application inspection, an applicator notices a drainage channel
immediately adjacent to the treatment area. What should the applicator do first?
A. Ignore it because drainage channels are common
B. Increase the application rate
C. Spray the channel to prevent pests
D. Evaluate the label, site conditions, and potential for contamination before proceeding
Sensitive areas and pathways for pesticide movement must be considered before treatment.
The label and site-specific conditions determine whether application is appropriate.
13. Which practice most directly reduces pesticide drift?
, A. Increasing spray pressure
B. Using appropriate droplet size and application conditions
C. Spraying during strong winds
D. Increasing boom height
Appropriate droplet size, equipment settings, wind conditions, and application technique can
substantially reduce off-target movement.
14. A pesticide applicator is asked by a customer to apply a product at twice the labeled
rate because the customer wants faster control. What should the applicator do?
A. Apply the requested rate
B. Apply twice the rate only in heavily infested areas
C. Refuse the off-label rate and follow the legally applicable label
D. Mix two products instead
The applicator must not knowingly exceed a pesticide label's permitted use rate. Customer
preference does not override legal pesticide-use requirements.
15. Which condition presents the greatest immediate concern when spraying near a
sensitive crop?
A. Strong winds moving toward the crop
B. Mild temperature
C. Clean spray equipment
D. Adequate water supply
Wind moving toward a sensitive crop can carry pesticide droplets or vapors into the crop and
create off-target injury.
16. What is the primary purpose of a pesticide label?
A. To advertise the product
B. To provide legally required directions, precautions, and restrictions for use
C. To replace applicator training
D. To identify the customer's preferred application method
The label communicates legally enforceable directions and safety information necessary for
proper pesticide use.
17. An applicator has finished spraying but discovers pesticide residue on the outside of a
glove. What should occur next?
A. Continue working until the end of the day
B. Wipe the glove on clothing
