QAC RIGHT-OF-WAY EXAM 2026
QUESTIONS WITH CORRECT ANSWERS |
COMPREHENSIVE REVIEW CALIFORNIA
QUALIFIED APPLICATOR CERTIFICATE (QAC) –
CATEGORY C (RIGHT-OF-WAY) VERIFIED | GRADED
A+ | LATEST 2026 UPDATE.
INTRODUCTION .
This comprehensive practice examination is designed for candidates preparing for the California
QAC Right-of-Way Exam (Category C) for the 2026 testing cycle. This certification is required for
pesticide applicators performing vegetation management and pest control along roadsides,
railroads, utility lines, pipelines, canals, railways, and other right-of-way sites in California .
Exam Information:
Certifying Body: California Department of Pesticide Regulation (DPR)
Category: C – Right-of-Way (Note: NOT Category B, which is Landscape Maintenance)
Regulatory Framework: California Code of Regulations, Title 3 (3 CCR); DPR laws and regulations
Exam Format: Multiple-choice, scenario-based, calculation questions
Target Audience: Pest control applicators working on roadsides, railroads, utility rights-of-way,
pipelines, canals, railways, and similar sites
Major Content Areas Covered:
Right-of-Way Sites and Pest Management: Roadsides, power lines, telephone lines, pipelines,
canals, railways, and any landscaping associated with the right-of-way; engineered rights-of-way
(areas constructed to increase runoff and storm water collection such as railroad ballasts,
berms, public roadsides, highway median strips)
Vegetation Management: Reasons to manage vegetation under utility lines (prevent damage to
conductor poles and towers); railroad track vegetation management (fire prevention); managed
waterways (maintain visibility, prevent soil erosion); vegetation above buried pipelines
(monitoring, root damage prevention); fire strips; preemergence herbicide incorporation
(cultivation)
,Weed Identification and Biology: Biennial weeds (bull thistle); perennial weeds (gorse, field
horsetail); woody perennials (French broom); winter annuals (burning nettle); sedges (blunt
spikerush); yellow nutsedge (tubers round and smooth); horse tail and scouring rushes (may or
may not have branches); field horsetail (poisonous to sheep/horses)
Herbicide Application: Application rate calculations; selective application techniques; reducing
VOC emissions (granular formulations); biennial weed control timing (before flower stalk
emerges); conifer re-sprouting; cut stump spraying; basal stem spray; contact herbicides (annual
weeds)
Vertebrate Pest Control: Ground squirrel control (best in spring/summer); cottontail rabbits (oak
woodland ROW pests); roof rat (common pest rat in California)
Invertebrate Pest Control and IPM: Entomopathogenic nematodes (biological control); green
lacewings (beneficial predators); glassy-winged sharpshooter (Xylella fastidiosa vector); beetle
metamorphosis (complete); biting/stinging insects (substations/towers)
Plant Pathogens: Bacteria (require living host); fungal structures visible to naked eye (sclerotia)
Pesticide Safety and Environmental Protection: Surface water protection (avoid treating
pavement); notification requirements (post notification when people enter treated ROW areas);
JMP Plan (plant species selection for pest resistance); "Engineered rights-of-way" definition per
3 CCR § 6000
Regulations and Compliance: California DPR requirements for right-of-way applicators;
prohibited applications (direct application to running or standing water, fumigants)
This examination reflects all 2026 California DPR QAC Right-of-Way (Category C) requirements
and is verified for accuracy with current regulatory standards. Each question includes the
correct answer and a detailed rationale to support exam readiness.
Important Regulatory Note: Category C does NOT include direct application to running or
standing water, or use of any pesticide labeled as a fumigant .
Section 1: Right-of-Way Sites and Pest Management (Questions 1-25)
Q1: Applications in the right-of-way can apply pesticides in which of the following sites?
A. Residential lawns
B. Agricultural fields
C. Canals
D. Golf courses
,[CORRECT] C. Canals
Rationale:
Right-of-way pest control includes sites such as canals, roadsides, power lines, telephone lines,
pipelines, railways, and any landscaping associated with the right-of-way . Canals are managed
waterways where vegetation control is required for water flow maintenance.
Q2: Pipelines are associated with which of the following structures?
A. Substations and towers
B. Pumping and transfer stations
C. Fire strips
D. Earthen dams
[CORRECT] B. Pumping and transfer stations
Rationale:
Pipelines are associated with pumping and transfer stations along the right-of-way. These
stations require vegetation management to maintain access and prevent damage.
Q3: Where do you encounter insects that bite and sting workers when they rest in
infrastructures?
A. Roadsides
B. Canals
C. Substations and towers
D. Bike paths
[CORRECT] C. Substations and towers
Rationale:
Substations and towers provide infrastructure where biting and stinging insects (wasps, bees,
spiders) often rest. Workers must be aware of these hazards when performing pest control in
these areas.
Q4: Of the following right-of-ways, which are alike in pest problems?
A. Roadsides and railroads
B. Roadsides and bicycle paths
, C. Utility lines and canals
D. Airports and pipelines
[CORRECT] B. Roadsides and bicycle paths
Rationale:
Roadsides and bicycle paths share similar vegetation management needs and pest problems.
Both require control of weeds that can encroach onto paved surfaces and create safety hazards.
Q5: What features do airports share with other right-of-way sites?
A. Canals and dams
B. Pumping stations
C. Communication lines and towers
D. Fire strips
[CORRECT] C. Communication lines and towers
Rationale:
Airports share communication lines and towers with other ROW sites such as utility corridors.
These structures require vegetation management to maintain access and prevent damage.
Q6: What reason is there to manage vegetation growing under utility lines?
A. Improve aesthetics
B. Provide wildlife habitat
C. Prevent damage to conductor poles and towers
D. Reduce fire risk only
[CORRECT] C. Prevent damage to conductor poles and towers
Rationale:
Managing vegetation under utility lines prevents damage to conductor poles and towers.
Overgrown vegetation can cause power outages, fire hazards, and structural damage during
storms or high winds.
Q7: What feature could you expect when performing pest control activities along roads?
A. Underground irrigation lines
QUESTIONS WITH CORRECT ANSWERS |
COMPREHENSIVE REVIEW CALIFORNIA
QUALIFIED APPLICATOR CERTIFICATE (QAC) –
CATEGORY C (RIGHT-OF-WAY) VERIFIED | GRADED
A+ | LATEST 2026 UPDATE.
INTRODUCTION .
This comprehensive practice examination is designed for candidates preparing for the California
QAC Right-of-Way Exam (Category C) for the 2026 testing cycle. This certification is required for
pesticide applicators performing vegetation management and pest control along roadsides,
railroads, utility lines, pipelines, canals, railways, and other right-of-way sites in California .
Exam Information:
Certifying Body: California Department of Pesticide Regulation (DPR)
Category: C – Right-of-Way (Note: NOT Category B, which is Landscape Maintenance)
Regulatory Framework: California Code of Regulations, Title 3 (3 CCR); DPR laws and regulations
Exam Format: Multiple-choice, scenario-based, calculation questions
Target Audience: Pest control applicators working on roadsides, railroads, utility rights-of-way,
pipelines, canals, railways, and similar sites
Major Content Areas Covered:
Right-of-Way Sites and Pest Management: Roadsides, power lines, telephone lines, pipelines,
canals, railways, and any landscaping associated with the right-of-way; engineered rights-of-way
(areas constructed to increase runoff and storm water collection such as railroad ballasts,
berms, public roadsides, highway median strips)
Vegetation Management: Reasons to manage vegetation under utility lines (prevent damage to
conductor poles and towers); railroad track vegetation management (fire prevention); managed
waterways (maintain visibility, prevent soil erosion); vegetation above buried pipelines
(monitoring, root damage prevention); fire strips; preemergence herbicide incorporation
(cultivation)
,Weed Identification and Biology: Biennial weeds (bull thistle); perennial weeds (gorse, field
horsetail); woody perennials (French broom); winter annuals (burning nettle); sedges (blunt
spikerush); yellow nutsedge (tubers round and smooth); horse tail and scouring rushes (may or
may not have branches); field horsetail (poisonous to sheep/horses)
Herbicide Application: Application rate calculations; selective application techniques; reducing
VOC emissions (granular formulations); biennial weed control timing (before flower stalk
emerges); conifer re-sprouting; cut stump spraying; basal stem spray; contact herbicides (annual
weeds)
Vertebrate Pest Control: Ground squirrel control (best in spring/summer); cottontail rabbits (oak
woodland ROW pests); roof rat (common pest rat in California)
Invertebrate Pest Control and IPM: Entomopathogenic nematodes (biological control); green
lacewings (beneficial predators); glassy-winged sharpshooter (Xylella fastidiosa vector); beetle
metamorphosis (complete); biting/stinging insects (substations/towers)
Plant Pathogens: Bacteria (require living host); fungal structures visible to naked eye (sclerotia)
Pesticide Safety and Environmental Protection: Surface water protection (avoid treating
pavement); notification requirements (post notification when people enter treated ROW areas);
JMP Plan (plant species selection for pest resistance); "Engineered rights-of-way" definition per
3 CCR § 6000
Regulations and Compliance: California DPR requirements for right-of-way applicators;
prohibited applications (direct application to running or standing water, fumigants)
This examination reflects all 2026 California DPR QAC Right-of-Way (Category C) requirements
and is verified for accuracy with current regulatory standards. Each question includes the
correct answer and a detailed rationale to support exam readiness.
Important Regulatory Note: Category C does NOT include direct application to running or
standing water, or use of any pesticide labeled as a fumigant .
Section 1: Right-of-Way Sites and Pest Management (Questions 1-25)
Q1: Applications in the right-of-way can apply pesticides in which of the following sites?
A. Residential lawns
B. Agricultural fields
C. Canals
D. Golf courses
,[CORRECT] C. Canals
Rationale:
Right-of-way pest control includes sites such as canals, roadsides, power lines, telephone lines,
pipelines, railways, and any landscaping associated with the right-of-way . Canals are managed
waterways where vegetation control is required for water flow maintenance.
Q2: Pipelines are associated with which of the following structures?
A. Substations and towers
B. Pumping and transfer stations
C. Fire strips
D. Earthen dams
[CORRECT] B. Pumping and transfer stations
Rationale:
Pipelines are associated with pumping and transfer stations along the right-of-way. These
stations require vegetation management to maintain access and prevent damage.
Q3: Where do you encounter insects that bite and sting workers when they rest in
infrastructures?
A. Roadsides
B. Canals
C. Substations and towers
D. Bike paths
[CORRECT] C. Substations and towers
Rationale:
Substations and towers provide infrastructure where biting and stinging insects (wasps, bees,
spiders) often rest. Workers must be aware of these hazards when performing pest control in
these areas.
Q4: Of the following right-of-ways, which are alike in pest problems?
A. Roadsides and railroads
B. Roadsides and bicycle paths
, C. Utility lines and canals
D. Airports and pipelines
[CORRECT] B. Roadsides and bicycle paths
Rationale:
Roadsides and bicycle paths share similar vegetation management needs and pest problems.
Both require control of weeds that can encroach onto paved surfaces and create safety hazards.
Q5: What features do airports share with other right-of-way sites?
A. Canals and dams
B. Pumping stations
C. Communication lines and towers
D. Fire strips
[CORRECT] C. Communication lines and towers
Rationale:
Airports share communication lines and towers with other ROW sites such as utility corridors.
These structures require vegetation management to maintain access and prevent damage.
Q6: What reason is there to manage vegetation growing under utility lines?
A. Improve aesthetics
B. Provide wildlife habitat
C. Prevent damage to conductor poles and towers
D. Reduce fire risk only
[CORRECT] C. Prevent damage to conductor poles and towers
Rationale:
Managing vegetation under utility lines prevents damage to conductor poles and towers.
Overgrown vegetation can cause power outages, fire hazards, and structural damage during
storms or high winds.
Q7: What feature could you expect when performing pest control activities along roads?
A. Underground irrigation lines
