COMPREHENSIVE ARIZONA CR21 HARDSCAPING
& IRRIGATION SYSTEMS PRACTICE EXAM
QUESTIONS AND CORRECT DETAILED ANSWERS
(VERIFIED ANSWERS) ALREADY GRADED A+
(MOST RECENT!!) (BRAND NEW!!)
1. Which Arizona state agency issues and regulates the CR21 license?
A) Arizona Department of Water Resources
B) Arizona Registrar of Contractors (AZ ROC)
C) Arizona Department of Agriculture
D) Arizona Department of Environmental Quality
Correct Answer: B
Rationale: The Arizona Registrar of Contractors (AZ ROC) issues and regulates all
contractor licenses, including the CR21 for hardscaping and irrigation systems . The AZ
ROC is responsible for ensuring contractors meet licensing requirements, pass required
exams, and comply with state regulations.
2. What is the maximum contract amount allowed under the Arizona CR21 license
classification?
A) $5,000
B) $10,000
C) $25,000
D) No monetary limit, but scope limited to hardscaping and irrigation
Correct Answer: D
Rationale: The CR21 license does not have a specific monetary limit on projects but is
limited to the specific scope of hardscaping and irrigation systems. Contract amounts
may be restricted by the contractor's financial qualifications .
,3. Which license classifications were consolidated into the CR-21 Hardscaping and
Irrigation Systems license?
A) C-21 Landscaping and Irrigation Systems and R-21 Residential Hardscaping
B) L-26 Landscaping and A-21 Agricultural Irrigation
C) C-21 Commercial Paving and R-21 Residential Grading
D) B-21 Building Construction and L-21 Landscape Design
Correct Answer: A
Rationale: The CR-21 license consolidated the separate C-21 (Commercial) and R-21
(Residential) classifications into a single dual license covering both residential and
commercial hardscaping and irrigation work. Upon the effective date of these rules,
existing CR-21 Landscaping and Irrigation Systems licenses were reclassified as CR-21
Hardscaping and Irrigation Systems .
4. What is the minimum required experience for a CR21 license applicant?
A) 1 year of relevant experience
B) 2 years of relevant experience
C) 4 years of relevant experience
D) No specific experience requirement
Correct Answer: C
Rationale: Arizona requires a minimum of 4 years of relevant experience for most
contractor license classifications, including CR21. This may include technical training in
an accredited college, university, or manufacturer's training program, though it should
not exceed two years of the four-year minimum requirement .
5. What is the minimum project value that requires a contractor license in Arizona?
A) $500
B) $1,000
C) $2,500
D) $5,000
Correct Answer: B
Rationale: In Arizona, any landscaping project costing $1,000 or more (including labor
and materials) requires a contractor license from the AZ ROC .
,6. What is the total application fee for a CR21 license?
A) $580
B) $850
C) $1,000
D) $1,500
Correct Answer: A
Rationale: The application fee for a CR-21 license is $100, with an additional license fee
of $380 and a Recovery Fund Assessment of $370, totaling $850 . The CR-21 license
requires the Residential Recovery Fund Assessment because it covers both residential
and commercial work.
7. What is the surety bond requirement for a CR21 license?
A) Fixed amount of $5,000
B) Varies based on expected annual revenue, ranging from $2,500 to $15,000
C) Fixed amount of $10,000
D) No bond required
Correct Answer: B
Rationale: The bond requirement for a CR-21 license depends on the contractor's
expected annual revenue, with bonds ranging from $2,500 to $15,000 .
8. Who administers the CR21 Trade Exam and Statutes & Rules Exam in Arizona?
A) Arizona Registrar of Contractors (AZ ROC)
B) PSI Services
C) Arizona Department of Water Resources
D) National Association of Landscape Professionals
Correct Answer: B
Rationale: PSI Services administers both the Trade Exam and the Statutes & Rules Exam
on behalf of the Arizona Registrar of Contractors (AZ ROC) .
, 9. Which of the following activities is specifically INCLUDED under the CR21
license classification?
A) Installing swimming pools
B) Building outdoor kitchens with plumbing and electrical
C) Installing drip irrigation systems
D) Constructing residential buildings
Correct Answer: C
Rationale: The CR21 license specifically includes installation of drip irrigation systems.
Other activities such as pool installation, outdoor kitchens with plumbing/electrical, and
building construction require additional licenses or are excluded from the CR scope .
10. According to Arizona regulations, when must irrigation systems be tested for
backflow prevention?
A) Only during initial installation
B) Annually
C) Every 5 years
D) Only when a problem is suspected
Correct Answer: B
Rationale: Arizona regulations require annual testing of backflow prevention devices to
ensure they are functioning properly and protecting the potable water supply from
contamination .
11. Which backflow prevention device is typically required for commercial
irrigation systems in Arizona?
A) Atmospheric vacuum breaker (AVB)
B) Pressure vacuum breaker (PVB)
C) Double check valve assembly (DCVA)
D) Reduced pressure zone assembly (RPZ)
Correct Answer: D
Rationale: RPZ assemblies protect against both backpressure and backsiphonage and
are required where contamination risk is high, such as systems with fertilizer injection.
Arizona typically requires RPZ devices for commercial irrigation systems .
& IRRIGATION SYSTEMS PRACTICE EXAM
QUESTIONS AND CORRECT DETAILED ANSWERS
(VERIFIED ANSWERS) ALREADY GRADED A+
(MOST RECENT!!) (BRAND NEW!!)
1. Which Arizona state agency issues and regulates the CR21 license?
A) Arizona Department of Water Resources
B) Arizona Registrar of Contractors (AZ ROC)
C) Arizona Department of Agriculture
D) Arizona Department of Environmental Quality
Correct Answer: B
Rationale: The Arizona Registrar of Contractors (AZ ROC) issues and regulates all
contractor licenses, including the CR21 for hardscaping and irrigation systems . The AZ
ROC is responsible for ensuring contractors meet licensing requirements, pass required
exams, and comply with state regulations.
2. What is the maximum contract amount allowed under the Arizona CR21 license
classification?
A) $5,000
B) $10,000
C) $25,000
D) No monetary limit, but scope limited to hardscaping and irrigation
Correct Answer: D
Rationale: The CR21 license does not have a specific monetary limit on projects but is
limited to the specific scope of hardscaping and irrigation systems. Contract amounts
may be restricted by the contractor's financial qualifications .
,3. Which license classifications were consolidated into the CR-21 Hardscaping and
Irrigation Systems license?
A) C-21 Landscaping and Irrigation Systems and R-21 Residential Hardscaping
B) L-26 Landscaping and A-21 Agricultural Irrigation
C) C-21 Commercial Paving and R-21 Residential Grading
D) B-21 Building Construction and L-21 Landscape Design
Correct Answer: A
Rationale: The CR-21 license consolidated the separate C-21 (Commercial) and R-21
(Residential) classifications into a single dual license covering both residential and
commercial hardscaping and irrigation work. Upon the effective date of these rules,
existing CR-21 Landscaping and Irrigation Systems licenses were reclassified as CR-21
Hardscaping and Irrigation Systems .
4. What is the minimum required experience for a CR21 license applicant?
A) 1 year of relevant experience
B) 2 years of relevant experience
C) 4 years of relevant experience
D) No specific experience requirement
Correct Answer: C
Rationale: Arizona requires a minimum of 4 years of relevant experience for most
contractor license classifications, including CR21. This may include technical training in
an accredited college, university, or manufacturer's training program, though it should
not exceed two years of the four-year minimum requirement .
5. What is the minimum project value that requires a contractor license in Arizona?
A) $500
B) $1,000
C) $2,500
D) $5,000
Correct Answer: B
Rationale: In Arizona, any landscaping project costing $1,000 or more (including labor
and materials) requires a contractor license from the AZ ROC .
,6. What is the total application fee for a CR21 license?
A) $580
B) $850
C) $1,000
D) $1,500
Correct Answer: A
Rationale: The application fee for a CR-21 license is $100, with an additional license fee
of $380 and a Recovery Fund Assessment of $370, totaling $850 . The CR-21 license
requires the Residential Recovery Fund Assessment because it covers both residential
and commercial work.
7. What is the surety bond requirement for a CR21 license?
A) Fixed amount of $5,000
B) Varies based on expected annual revenue, ranging from $2,500 to $15,000
C) Fixed amount of $10,000
D) No bond required
Correct Answer: B
Rationale: The bond requirement for a CR-21 license depends on the contractor's
expected annual revenue, with bonds ranging from $2,500 to $15,000 .
8. Who administers the CR21 Trade Exam and Statutes & Rules Exam in Arizona?
A) Arizona Registrar of Contractors (AZ ROC)
B) PSI Services
C) Arizona Department of Water Resources
D) National Association of Landscape Professionals
Correct Answer: B
Rationale: PSI Services administers both the Trade Exam and the Statutes & Rules Exam
on behalf of the Arizona Registrar of Contractors (AZ ROC) .
, 9. Which of the following activities is specifically INCLUDED under the CR21
license classification?
A) Installing swimming pools
B) Building outdoor kitchens with plumbing and electrical
C) Installing drip irrigation systems
D) Constructing residential buildings
Correct Answer: C
Rationale: The CR21 license specifically includes installation of drip irrigation systems.
Other activities such as pool installation, outdoor kitchens with plumbing/electrical, and
building construction require additional licenses or are excluded from the CR scope .
10. According to Arizona regulations, when must irrigation systems be tested for
backflow prevention?
A) Only during initial installation
B) Annually
C) Every 5 years
D) Only when a problem is suspected
Correct Answer: B
Rationale: Arizona regulations require annual testing of backflow prevention devices to
ensure they are functioning properly and protecting the potable water supply from
contamination .
11. Which backflow prevention device is typically required for commercial
irrigation systems in Arizona?
A) Atmospheric vacuum breaker (AVB)
B) Pressure vacuum breaker (PVB)
C) Double check valve assembly (DCVA)
D) Reduced pressure zone assembly (RPZ)
Correct Answer: D
Rationale: RPZ assemblies protect against both backpressure and backsiphonage and
are required where contamination risk is high, such as systems with fertilizer injection.
Arizona typically requires RPZ devices for commercial irrigation systems .
