Fire Cert Academy
Back to blog

What's on the ICC CF Sprinkler Inspector Exam? All 9 Domains

Seventy-five questions across eight standards, and the water supply chain outweighs the sprinklers themselves nearly two to one.

September 3, 20263 min readICC® Commercial Fire Sprinkler Inspector
Contents

What's on the ICC CF Sprinkler Inspector Exam? All 9 Domains

The format

Questions75
Time2.5 hours
Book policyOpen - you bring your own references
DeliveryICC PRONTO remote proctoring, or a Pearson VUE test centre

The nine domains, by weight

DomainWeightWhere it comes from
System and Installation Requirements20%NFPA 13
Water Source15%NFPA 24, NFPA 22, NFPA 25
Acceptance Testing and Inspection14%NFPA 25, NFPA 13
Commodities / Hazard Class11%NFPA 13
Standpipes10%NFPA 14, NFPA 25
Fire Pumps9%NFPA 20, NFPA 25
Fire Sprinklers8%NFPA 13
Ability to Read Plans / Materials7%IFC, NFPA 13
Fire Department Connections6%NFPA 13, NFPA 14

The water supply chain outweighs the sprinklers

Fire Sprinklers as its own domain is 8%. Add water source, standpipes, fire pumps and fire department connections and you get 40%, everything upstream of the sprinkler.

Candidates who study NFPA 13 exclusively are preparing for roughly half this exam. NFPA 20, 22, 24 and 25 carry the other half between them.

Eight standards, one exam

CF lists more references than any other exam in the ICC fire family: NFPA 13, 13R, 14, 20, 22, 24, 25 and the IFC. Open book helps, but only if your tabs are built before you sit down. Two and a half hours for seventy-five questions is two minutes each, including lookups.

Acceptance testing is a distinct skill

Fourteen percent covers witnessing tests, including hydrostatic, flushing, main drain and forward flow, as opposed to reading a system. If you have never stood at an acceptance test, NFPA 25 Chapter 4 and NFPA 13's acceptance sections are the ones to read twice.

Where to start

Work the heaviest domain first and check yourself against the weighting, not against how interesting the material is. The published percentages are the closest thing to an answer key you get before exam day.

Our free 10-question practice test draws from the same weighted pool, so the mix you see is the mix the exam uses.

BC
Brandon Carlton
Founder, Fire Cert Academy

Ready to pass ICC® Commercial Fire Sprinkler Inspector?

Start your prep with unlimited practice tests and codebook-referenced answers.

Start Studying →

Related reading

What's on the ICC CF Sprinkler Inspector Exam? All 9 Domains

Seventy-five questions across eight standards, and the water supply chain outweighs the sprinklers themselves nearly two to one.

Sep 3, 2026 · 3 min readICC® Commercial Fire Sprinkler Inspector

What's on the ICC CP Sprinkler Plans Examiner Exam? 9 Domains

Nearly a third of this exam is hydraulic calculations and water supply, the largest single domain in the ICC fire family.

Sep 3, 2026 · 2 min readICC® Fire Sprinkler Plans Examiner

Illinois Fire Sprinkler Inspector License: Who Needs One and Which Certification Qualifies You

Since January 1, 2024 Illinois licenses fire sprinkler inspectors individually — but runs no state exam. Which certifications qualify, who is exempt, and why NICET Level II is no longer enough.

Aug 31, 2026 · 6 min readNICET I&T of Water-Based Systems