Licensing Exams by Trade Name - Home Link

Arizona
(R-37R) Plumbing

Apply for the License
Arizona Registrar of Contractors
1700 W. Washington St, Suite 105
Phoenix, AZ  85007
Phone: (877) 692-9762
Licensing Agency Site
Exam Provider
PSI Services LLC
3210 E. Tropicana Ave
Las Vegas, NV  89121
Phone:  (855)  744-0310
Arizona PSI Site
Exam Type
OPEN  BOOK
Exam Content
Subject Areas# of
Questions
Drainage Waste and Vents16
Indirect Waste4
Water Supply Systems13
Backflow Prevention5
Roof Drains and Storm Drainage Systems5
Plumbing Fixtures (including water heaters and accessibility)7
General Knowledge and General Regulations10
Specialty Plumbing, Interceptors, and Traps5
Isometric Analysis5
Fuel Gas10
Septic and Sewer10
Fire Sprinklers5
Excavation5
Total number of test questions:
100
Time allowed (minutes):
240

In addition to the trade-specific examination, you must take the

Arizona Statutes & Rules Training Course & Exam

Link to Statutes and Rules Exam
Books Allowed in the Exam
1.
CFR Title 29, Part 1926 Selections (OSHA), 2013, PSI
Buy from PSI
2.
International Fuel Gas Code, 2018, ICC
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3.
International Mechanical Code, 2018, ICC
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4.
International Plumbing Code, 2018, ICC
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5.
NFPA 13: Standard for the Installation of Sprinkler Systems, 2016, NFPA
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6.
NFPA 13D: Standard for the Installation of Sprinkler Systems in One- and Two-Family Dwellings and Manufactured Homes, 2007, NFPA
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7.
NFPA 13R: Standard for the Installation of Sprinkler Systems for Residential Occupancies Up To and Including Four Stories in Height, 2016, NFPA
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8.
On-site Wastewater Treatment Facility Provisions in Unified Water Quality Permit Rule, Arizona Administrative Code Title 18, Chapter 9, Arizona DEQ
PDF File Link
Books NOT Allowed in the Exam
1.
Mathematics for Plumbers and Pipefitters, 8th Edition, 2012, Lee Smith
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2.
IPT’s Pipe Trades Handbook, 1991 (updated 2006), Robert Lee, IPT Publishing
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3.
Boiler Operator's Guide, 4th Edition, Anthony Kohan
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4.
Arizona 811: Arizona Blue Stake
Web Page Link
5.
Modern Hydronic Heating for Residential and Light Commercial Buildings, 2nd Edition, John Siegenthaler
Buy at Amazon
Available Study Materials
This study guide only covers the OSHA portion of the PSI exam.
PSI OSHA Selections, 2013
Study Guide
$49.95
We advise that you NOT purchase the PSI published book shown in the exam bulletin.  We recommend a better, up-to-date allternative on our Study Guides purchase page linked below.

The button below will take you to the details about our 800 question Study Guides and provide you with a FREE "Reference Navigator" document that allows you to more accutately decide which sections of the federal code applies to your exam.  PSI does not provide this information.
Go to OSHA Guide buy page
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May-2025