ICC exams in Colorado: which exam, which code year and how to book
Taking an ICC exam in Colorado starts with your building department, not a state board: Colorado departments adopt their own code editions, so the department you work for, or want to work for, tells you which ICC certifications it asks for and which code year it enforces. For a residential inspector job that is usually ICC's B1 Residential Building Inspector exam, the same national exam in every state, which you can sit from home or at a test center.
Colorado departments adopt their own codes
The building departments for Colorado's two biggest cities show why you ask locally first:
| Department | Who it covers | Residential code it lists |
|---|---|---|
| Denver Community Planning and Development | The City and County of Denver | The 2025 Denver Building and Fire Code, adopted 13 Jun 2025, built on the 2024 I-codes (the energy code stays on the 2021 IECC) |
| Pikes Peak Regional Building Department | Colorado Springs, El Paso County, Fountain, Woodland Park, Manitou Springs, Monument, Green Mountain Falls, Palmer Lake and Calhan | The 2021 IRC, with the 2021 IBC for commercial work |
So a Denver inspector works from the 2024 IRC and a Colorado Springs inspector from the 2021 IRC. Before you buy an exam, read the job posting or call the department and write down three things: the certifications it names, the code year it enforces and how long a new hire has to earn them.
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Which ICC exam fits a Colorado inspector job
- Residential work (one- and two-family homes and townhouses): B1, Residential Building Inspector. It is open book, 60 questions in 2 hours, at a $320 list price per attempt in 2026. The ICC B1 certification guide covers the format and what you earn.
- Commercial work: B2, Commercial Building Inspector.
- Combination roles: R5, Residential Combination Inspector, is a designation ICC grants once you hold B1, E1, M1 and P1, so B1 is the first step. The B1, B2 or R5 comparison sets them side by side.
ICC offers B1 on the 2021 and 2024 code years. The year is fixed by the exam you book, so match it to what your department asked for. The 2021 vs 2024 IRC guide shows what moved between the two books.
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Where to take an ICC exam in Colorado
You can sit an ICC exam at home through PRONTO, ICC's live remote proctoring, which runs 24/7/365 for exams listed for remote delivery. You can also book a test center appointment, which adds a separate premium that cannot be waived. Either way you buy the exam in myICC first, then book a slot within 365 days. The ICC exam cost and scheduling guide walks through booking, the remote setup and retakes.
How to get ICC certified for a Colorado inspector job
- Ask the department. Get the certifications, code year and deadline in writing from the job posting or the hiring manager.
- Pick the exam and year. B1 on the year your department enforces, unless it named another exam.
- Buy the matching IRC. The exam is open book, so tab the edition you will test on.
- Practice by outline area. Find your weak areas first, then study them in the book.
- Book and sit the exam. Remote through PRONTO or at a test center, inside 365 days of buying it.
FAQ
Does Colorado require ICC certification for building inspectors?
Colorado building departments adopt their own codes, so the department that hires you is the one to ask which certifications it needs. Read the job posting or ask the department which ICC exams it names, and in which code year, before you buy one.
Which ICC exam should I take for a Colorado inspector job?
For residential inspection, the B1 Residential Building Inspector exam is the usual first exam. For commercial work it is B2. A department can ask for more than one, so confirm the list before you pay.
Which IRC edition should I study for in Colorado?
The one on the exam you book, which should match your department. Denver's code is built on the 2024 I-codes, while the Pikes Peak Regional Building Department lists the 2021 IRC. ICC offers B1 on both the 2021 and 2024 code years.
Where can I take an ICC exam in Colorado?
At home through PRONTO, ICC's live remote proctoring, for exams listed for remote delivery, or at a test center for an extra premium. You buy the exam in myICC first and book a slot within 365 days.
Are there ICC exam prep courses in Colorado?
The B1 is a national exam, so prep does not need to be Colorado-specific. An online course or practice bank built on the B1 outline covers what you need, used with the IRC edition your department enforces. The building inspector classes and courses guide compares the options.
How much does the ICC B1 exam cost?
The B1 has a $320 list price per attempt in 2026 on the ICC store. A test center adds a separate premium, and each retake costs the exam fee again.
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The certification by state guide covers states with a state board for inspectors.
Sources
Show the list
- Building codes, policies and guides, Denver Community Planning and Development. Checked 29 Oct 2026.
- Pikes Peak Regional Building Department, service area and currently adopted codes. Checked 29 Oct 2026.
- Residential Building Inspector (B1), ICC store, and the current national certification exam list, ICC.
- PRONTO and the booking walkthrough, ICC.
Facts come from the sources listed above. If something has changed, tell us and we will correct it within 2 business days.
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