Fire protection licensing in Idaho
The Idaho State Fire Marshal (Department of Insurance) licenses fire protection sprinkler contractors and sprinkler fitters (IDAPA 18.08.02). A contractor's owner, officer or manager qualifies with NICET Level III in automatic sprinkler system design/layout, or by passing a State Fire Marshal exam and documenting installation experience. Fitters take a State Fire Marshal written exam. The State Fire Marshal does not license fire alarm, extinguisher or kitchen hood technicians.
What each trade needs in Idaho
Fire sprinkler
Fire Protection Sprinkler (FPS) Contractor License
- Issued by
- Idaho State Fire Marshal (Idaho Department of Insurance)
- Who needs it
- Any business contracting for sale, design, installation, alteration, repair, maintenance or maintenance inspection of fire sprinkler systems; qualified by an owner, officer or manager
- What it takes
- Either pass a State Fire Marshal exam and show you supervised or installed at least four sprinkler systems of 200 or more heads each, or hold NICET Level III certification in automatic sprinkler system design (or equivalent) (IDAPA 18.08.02.011). The license costs $400, requires a $2,000 bond and renews annually. The State Fire Marshal does not accept certifications issued by other states.
NICET: NICET Water-Based Systems Layout Level III accepted in lieu of the state exam
State exam: State Fire Marshal contractor exam ($25)
Sources: IDAPA 18.08.02 (Rules Concerning Fire Protection Sprinkler Contractors), current; Idaho SFM, Fire Protection Sprinkler Contractor License application; Idaho SFM licensing & certification index
Fire Protection Sprinkler Fitter License
- Issued by
- Idaho State Fire Marshal
- Who needs it
- Sprinkler fitters
- What it takes
- A licensed FPS contractor must attest that you worked at least 1,000 hours a year as a fitter for 3 consecutive years. Then pass the State Fire Marshal written exam (IDAPA 18.08.02.022). Fees: $25 exam, $50 license, $25 annual renewal.
State exam: State Fire Marshal written fitter exam
Sources: IDAPA 18.08.02.022 (Fitters); Idaho SFM, Fire Protection Sprinkler Fitters License page
Practice for these credentials
These national exams are named in the requirements above. Each has a free sample test.
NICET Water-Based Systems Layout
Sprinkler & standpipe layout — design, hangers, hydraulics.
Named in: Fire Protection Sprinkler (FPS) Contractor License
Sources
Statutes, administrative codes and licensing agency pages, checked November 13, 2026. Rules change; the agency's current text governs.