Fire protection licensing in Arizona
Arizona licenses fire protection contractors through the Registrar of Contractors (ROC): the C-16 (commercial), CR-16 (dual) and R-16 (residential) Fire Protection Systems classifications. The qualifying party takes a PSI trade exam plus the Statutes and Rules Exam; NICET is not part of the state license. There is no statewide technician license, so NICET requirements come from cities: Phoenix, for example, requires a Fire Department Business Certificate whose holder has NICET Level III (or CSA certification or a PE).
Some cities and counties in Arizona add their own requirements on top of the state's. Confirm with your local fire marshal before you rely on this page.
What each trade needs in Arizona
Fire sprinkler
C-16 Fire Protection Systems (commercial) / CR-16 (dual) / R-16 (residential) contractor license
- Issued by
- Arizona Registrar of Contractors (ROC)
- Who needs it
- Contractors installing, altering or repairing fire protection systems that use water, steam, gas or chemicals, including restaurant hood systems, fire pumps and related low-voltage signaling (R4-9-102). Licensed through a qualifying party.
- What it takes
- The qualifying party passes the ROC Statutes and Rules Exam (SRE) and a PSI trade exam and meets the experience requirements on the ROC classification chart (CR-16: 4 years, SRE plus trade exam; R-16: trade exam optional against experience). The ROC rules have no NICET requirement.
State exam: PSI computer-based trade exam (C-16, CR-16 or R-16) plus the ROC Statutes and Rules Exam
Sources: Ariz. Admin. Code R4-9-102 (C-16 scope), via Cornell LII; AZ ROC License Classification Requirements chart; PSI Arizona ROC Contractor Candidate Information Bulletin
Other credentials
City of Phoenix Fire Department Business Certificate (fire alarm, sprinkler, underground, hood, special suppression)
- Issued by
- Phoenix Fire Department, Fire Prevention Section (local)
- Who needs it
- Contractors installing, modifying, testing or servicing fire alarm, automatic sprinkler, underground fire line, hood or special suppression systems inside Phoenix
- What it takes
- The certificate holder must hold NICET Level III or higher for the system being registered, be a Certified Professional Engineer, or hold a valid CSA (Compliance Services and Assessments) certification for that system. A competent party (CSA level 2, NICET Level II or higher, manufacturer certification, or PE) must be on site for inspections. $150 per system type; 3-year term.
NICET: NICET Level III or higher (certificate holder) or Level II or higher (on-site competent party), for the system type being registered
Practice for these credentials
These national exams are named in the requirements above. Each has a free sample test.
NICET Fire Alarm Systems
Most-pursued fire-alarm credential — design, layout & installation.
Named in: City of Phoenix Fire Department Business Certificate (fire alarm, sprinkler, underground, hood, special suppression)
NICET Water-Based Systems Layout
Sprinkler & standpipe layout — design, hangers, hydraulics.
Named in: City of Phoenix Fire Department Business Certificate (fire alarm, sprinkler, underground, hood, special suppression)
NICET Special Hazards Systems
CO₂, clean agent, water mist, foam & deluge suppression systems.
Named in: City of Phoenix Fire Department Business Certificate (fire alarm, sprinkler, underground, hood, special suppression)
Sources
Statutes, administrative codes and licensing agency pages, checked November 13, 2026. Rules change; the agency's current text governs.