Construction Trade Exam Research Area

CR-21 Landscaping and Irrigation Systems
(Residential / Commercial)

Apply for the License

Arizona Registrar of Contractors ™
1700 W. Washington St, Suite 105
Phoenix, AZ  85007
Phone: (602) 542-1525
Licensing Link

Exam Administrator

PSI Licensure: Certification ™
3210 E. Tropicana
Las Vegas, NV  89121
Phone:  (800) 733-9267
Candidate Bulletin Link

Exam Type


Exam Content

Subject Areas# of
Irrigation Systems 15
Trees and Shrubs 10
Grass and Groundcover 8
Grading and Drainage 6
Soils, Amendments, and Chemicals 10
Desert Plants 5
Hardscaping 8
Low Voltage Electricity 5
Rules and Regulations 3
General Knowledge 5

Total number of test questions: 75
Time allowed (minutes): 180
The state of Arizona also requires that you take and pass a written Business Management exam for this trade

Go to Business and Law Offering

Books Allowed in the Exam

1. Code of Federal Regulations - 29 CFR Part 1926 (OSHA), GPO [or] (OSHA) Selections by PSI Buy from Publisher
Go to OSHA Resources

Books NOT Allowed in the Exam

1. Arizona 811 - Excavator Guide, Arizona Blue Stake PDF File Link
2. Arizona Administrative Code, Title 4, Chapter 9: Registrar of Contractors, 2017 (Revises 2009), Arizona State Department PDF File Link
3. Arizona Workmanship Standards for Licensed Contractors, 2009, Arizona Registrar of Contractors PDF File Link
4. Fences and Retaining Walls, 1996 (Revises 1990), William McElroy. Buy at Amazon
5. Landscaping Principles & Practices, 7th Edition, 2009 (Revises 6th Edition), Jack Ingels. Buy at Amazon
6. Landscape Construction, 3rd Edition, 2011, David Sauter. Buy at Amazon
7. Simplified Irrigation Design, 2nd Edition, 1995, Pete Melby. Buy at Amazon
8. Sustainable Landscape Management - Standards for Landscape Care in the Desert Southwest, 1st Edition, 2009, Janet L. Waibel. Buy at Amazon
Study materials are currently NOT available for this exam

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