- The exam is 120 multiple-choice questions in 3 hours, closed-book, with a 75% passing score.
- Five domains: General Knowledge, Site Characterization, Sample Collection, Analysis/Interpretation/Report Writing, and Remediation.
- The first two-year term costs $500 in the US/Canada ($100 exam plus $400 certification); retakes cost $100.
- Eligibility requires documented fire/smoke investigation experience, from four to eight years depending on your education.
Which CFSC This Sheet Covers
This cheat sheet is about one credential only: the Council-certified Fire and Smoke Damage Consultant (CFSC), issued by the American Council for Accredited Certification (ACAC). The acronym is shared by several unrelated credentials in other industries, so be careful when searching. Fee tables, exam dates and pass statistics for a different "CFSC" do not apply to you. If you want background on the designation itself, see What Is CFSC? and What Does CFSC Stand For?.
The CFSC is aimed at professionals who investigate combustion-product damage: assessing what fire and smoke did to a structure and its contents, collecting evidence, interpreting results, and recommending remediation. The sections below compress the details you need into a single review pass. For a deeper treatment of any item, follow the links to the dedicated guides.
The Exam at a Glance
| Item | Fact |
|---|---|
| Issuer | American Council for Accredited Certification (ACAC) |
| Format | 120 multiple-choice questions, at least four answer choices per item |
| Time limit | 3 hours |
| Reference materials | Closed-book written examination |
| Passing score | 75%, set using the modified Angoff method |
| Testing provider | Kryterion |
| Delivery | Computer-based at testing centers or via online video proctoring |
| Score reporting | Electronic scores available immediately |
Two details are worth understanding rather than just memorizing. First, the modified Angoff method means the 75% cut score reflects expert judgment about what a minimally competent consultant should know. It is not a curve against other candidates, so your result depends on your own mastery. The CFSC passing score guide explains what that means for your preparation. Second, 120 questions in 180 minutes works out to 90 seconds per question on average, which is generous for recall items but tight for scenario-based items that require reading a site description before answering.
The Five Domains in One Pass
ACAC's examination chart for the CFSC lists five domains. Note that no percentage weights are published in the chart or handbook, so avoid any study plan that assumes one domain "counts for" a specific share of the exam. Treat all five as examinable and prepare accordingly. The full breakdown lives in the CFSC exam domains guide; here is the compressed version.
Domain 1: General Knowledge
The foundation: the science and vocabulary behind combustion and the damage it causes.
- How fires produce combustion products and how those products travel and deposit
- Terminology you will need to read scenario questions accurately
- The professional role of a consultant, including the investigative mindset and limits of scope
Domain 2: Site Characterization
What you do before you collect anything: understanding the loss.
- Reading a fire scene and inferring where and how combustion products spread
- Identifying affected materials, areas and building systems
- Planning the investigation so later sampling answers a defined question
Domain 3: Sample Collection
The hands-on core of the work: obtaining evidence that will hold up.
- Choosing sampling methods appropriate to the material and the question
- Preserving sample integrity and documenting where, when and how each was taken
- Recognizing how poor technique can invalidate downstream conclusions
Domain 4: Sample Analysis, Data Interpretation & Report Writing
Turning samples into defensible findings.
- Understanding what laboratory results do and do not tell you
- Interpreting data against the site picture rather than in isolation
- Writing clear, supportable reports that tie conclusions to evidence
Domain 5: Remediation
Connecting findings to action.
- Matching cleaning and restoration approaches to the damage you characterized
- Judging when remediation is appropriate and how to define success
- Understanding how verification ties back to your original investigation
Notice how the domains mirror the workflow of a real engagement: learn the science, characterize the site, collect samples, analyze and report, then address remediation. Many exam questions cut across domains. A question about a report conclusion may hinge on whether the sampling method was appropriate. Studying them as a chain, not as isolated silos, pays off.
Eligibility Snapshot
The CFSC is an experience-based credential, which is a major difference from entry-level certifications. ACAC offers three routes:
| Education | Documented fire/smoke investigation experience |
|---|---|
| Qualifying science-related four-year degree (or 30-credit equivalent) | 4 years |
| Qualifying two-year degree (or 15-credit equivalent) | 6 years |
| High-school diploma or GED | 8 years |
The experience must involve designing, conducting and reporting investigations of combustion-product damage. Work in unrelated areas such as water damage, microbial growth, asbestos, lead and other indoor environmental investigations does not qualify, even if it was professionally demanding. This is one of the most common reasons applicants need to re-examine their history before applying.
The application package includes four project sheets, applicable education transcripts and required email verifications. Certification requires unanimous board approval, so the quality of your documentation matters. No training course is mandatory, though many candidates find structured preparation helpful; see CFSC training for options. The full eligibility discussion is in the CFSC requirements guide.
Fees, Terms and Renewal
| Cost item | Amount (USD) |
|---|---|
| Examination fee | $100 |
| Certification fee | $400 |
| First two-year term, US/Canada (exam + certification) | $500 |
| First two-year term, outside US/Canada | $525 |
| Retake | $100 |
| Renewal (per two-year term) | $400 |
The credential is valid for two years. Renewal requires the $400 fee and 40 recertification credits: 10 credits for attesting to continued field activity, plus 30 hours of professional development. Keep documentation of everything, because ACAC may audit it. The recertification procedures are published on ACAC's site, and the long-run cost picture is covered in the CFSC certification cost breakdown.
A point that surprises some candidates: passing the exam for state licensing purposes alone does not confer the CFSC designation. The designation requires meeting the eligibility, application and board-approval requirements in addition to passing the exam.
Exam-Day Logistics
Kryterion delivers the exam either at a testing center or through online video proctoring. Choose based on your environment and comfort, not convenience alone.
- Testing center: bring two government-issued IDs, including one with a photo.
- Online proctoring: expect a monitored session with environment checks; confirm technical requirements through the delivery policy on ACAC's exam page ahead of test day.
- Scoring: electronic scores are available immediately after you finish.
- Retakes: a retake costs $100, which lowers the financial stakes of a first attempt but does not replace thorough preparation.
Because the test is closed-book, there is no reference to lean on. Anything you need, such as terminology, sampling logic or report structure, has to be in your head. If you want to rehearse under similar conditions, the CFSC practice test is built for exactly that kind of timed run.
Numbers Worth Memorizing
These are the figures most likely to appear on a one-page review, whether for your own flashcards or a quick pre-exam scan:
- 120 questions, 3 hours, 75% to pass
- 5 domains, with no published percentage weights
- 4 / 6 / 8 years of experience, depending on education tier
- 4 project sheets in the application
- $500 first term (US/Canada), $525 elsewhere, $100 retake, $400 renewal
- 2-year validity, 40 recertification credits (10 field activity + 30 professional development)
On pass rates, be careful. ACAC's 2025 Exam Pass Ratio report shows 86%, with 18 passing out of 21 examinations. However, that report includes retakes and state-licensing-only examinations, and the sample is small, so it is not a first-attempt pass rate and should not be read as a prediction of your odds. The CFSC pass rate article unpacks this in more detail, and How Hard Is the CFSC Exam? offers a realistic view of difficulty.
Sequencing Your Review by Domain
Since the experience requirement means most candidates already work in the field, your review should target gaps instead of relearning daily practice. ACAC's Council-certified Fire and Smoke Damage (CFSx) Certification Program Exam Study/Review Guide (Rev. 12-2024) is the supporting preparation source to anchor your plan. One sensible ordering follows the workflow of the domains themselves:
General Knowledge and Site Characterization
- Refresh combustion science and terminology first, since every later domain assumes it
- Practice reading site scenarios and inferring product spread
Sample Collection
- Review method selection and documentation habits
- Focus on what makes a sample defensible versus compromised
Analysis, Interpretation and Report Writing
- Practice linking data to site findings and drawing limited, supportable conclusions
- Review what a strong report must contain
Remediation and Full-Length Practice
- Connect remediation choices back to earlier findings
- Take a timed 120-question run and revisit your weakest domain
Adjust the order if your daily work already makes one domain second nature. A restoration-focused professional may be strong on Remediation but rusty on laboratory data interpretation, while an investigator may have the opposite profile. The CFSC study guide offers a fuller approach, and you can test where you stand with the practice exam questions at the main site.
Common Traps for Candidates
Confusing experience types
Years spent on water-damage, mold, asbestos or lead work do not count toward the experience requirement. Count only investigations of combustion-product damage that you designed, conducted and reported.
Assuming the exam alone earns the credential
Passing the exam is one step. Project sheets, transcripts, email verifications and unanimous board approval all stand between you and the designation.
Treating the pass-ratio figure as your odds
The 86% figure (18 of 21) blends retakes and state-licensing-only candidates. It tells you little about a first attempt at the CFSC specifically.
Inventing domain weights
Because ACAC has not published percentage weights, any "Domain 3 is 30% of the exam" claim you encounter is not from the official chart or handbook. Prepare broadly.
Mixing up CFSC and similar-sounding credentials
The acronym is shared elsewhere. Confirm you are reading ACAC material, and use the CFSC certification overview if you need to re-orient.
Key Takeaway
Think of the five domains as one investigative chain: understand the science, characterize the site, collect defensible samples, interpret and report, then remediate. Questions often test whether you can spot a break anywhere in that chain.
Frequently Asked Questions
The exam has 120 multiple-choice questions with at least four answer choices each, and you have 3 hours. It is a closed-book written examination, so no reference materials are permitted.
The passing score is 75%, established using the modified Angoff method. Scores are available electronically right after you finish. See the CFSC passing score guide for more.
The first two-year term costs $500 in the US/Canada ($100 exam plus $400 certification) or $525 elsewhere. A retake is $100, and renewal is $400 every two years. Details are in the cost breakdown.
No. No training course is mandatory. You do need the required education and documented fire/smoke investigation experience, four project sheets, transcripts and email verifications, plus unanimous board approval.
Every two years you pay $400 and earn 40 recertification credits: 10 for attesting to continued field activity and 30 for professional development. Keep your documentation in case of an audit.