Short answer: NFPA published the Fire Protection Handbook, 21st edition, in early 2023, 15 years after the 20th edition (2008). It has 2 volumes, 21 sections, 210 revised chapters and 14 new chapters. The CFPS exam is now based on the 21st edition, so study from the 21st edition and bring it to the exam.
By Mohammad Alhamad, CFPS. This guide explains what changed between the two editions, what it means for the CFPS exam, and how to adjust your study plan. If you still need the book, read how to get the Fire Protection Handbook, 21st edition.
21st vs 20th edition at a glance
| Item | 20th edition | 21st edition |
|---|---|---|
| Published | 2008 | 2023 (early 2023) |
| Format | Printed handbook | 2 printed volumes, full-colour images, index tabs |
| Structure | Older section and chapter numbering | 21 sections grouped by topic, 210 revised and updated chapters |
| New chapters | — | 14 new chapters on current and emerging hazards |
| CFPS exam reference | No longer the exam basis | The CFPS certification is based on this edition |
Sources: NFPA press release on the 21st edition (via NEMA), PHCP Pros and the NFPA CFPS page.
The 14 new chapters in the 21st edition
These chapters did not exist in the 20th edition. They cover hazards that grew fast in the last 15 years, so expect them in your study plan.
| # | New chapter topic | Area |
|---|---|---|
| 1 | Wildland Fires and the Wildland/Urban Interface | Fire hazards and exposure |
| 2 | The Interconnected All-Hazards Fire Department | Fire service |
| 3 | Smart Infrastructure and Fire Protection | Building systems |
| 4 | Facilitating Occupant Movement During Emergencies | Life safety and human factors |
| 5 | Additive Flame Retardants | Materials |
| 6 | Solid and Liquid Oxidizers | Hazardous materials |
| 7 | Organic Peroxides | Hazardous materials |
| 8 | Photovoltaic Systems | Energy |
| 9 | Energy Storage Systems | Energy |
| 10 | Fuel Gases Detection | Detection |
| 11 | Cannabis Processing Facilities | Occupancies |
| 12 | Active Shooter/Hostile Event Operations | Emergency response |
| 13 | Modular Construction | Building construction |
| 14 | The NFPA Fire & Life Safety Ecosystem | Fire safety management |
Chapter list source: PHCP Pros, NFPA release coverage. The "Area" column is our own grouping to help you plan.
What changed for the CFPS exam
Since June 2024, the CFPS exam has been based on the 21st edition. NFPA says it was updated for the first time in 15 years to reflect the 21st edition. The exam format itself stays simple: one book, open-book, multiple choice.
| Exam item | What NFPA says now |
|---|---|
| Body of knowledge | Fire Protection Handbook, 21st edition (since June 2024) |
| Questions and time | 100 multiple-choice questions, 3 hours maximum |
| Book in the exam | Open-book; the Fire Protection Handbook is the only reference allowed in the room |
| Where | Prometric in-person test centres worldwide |
| Fee | USD 499; up to 2 retakes a year at USD 249 each |
Source: NFPA Certified Fire Protection Specialist (CFPS). For the full exam process, see our CFPS exam guide.
Can you still study from the 20th edition?
No. The exam questions are written to the 21st edition, and the 21st edition is the reference NFPA lists for the exam. If you study from the 20th edition, three things go wrong:
- Wrong locations. Sections and chapters were reorganised, so your notes and page tabs point to the wrong places.
- Missing topics. The 14 new chapters are not in the 20th edition at all.
- Old content. The other chapters were revised, so older answers and explanations can be out of date.
Be careful with old question banks and summary notes too. Many were written for the 20th edition and quote its chapter numbers. Check that every practice question you use refers to the 21st edition.
How to update your study plan
- Get the right book. Two volumes, published 2023. Buy it from NFPA's official Fire Protection Handbook page or an authorised distributor.
- Learn the new map. Spend your first study hours on the 21 sections and their order. Fast navigation is the main skill in an open-book exam.
- Read the 14 new chapters once. You do not need to memorise them, but you must know where they are and what they cover.
- Re-tab the book. Tab the sections and the chapters you use most, using permanent tabs (see the rules below).
- Practise against the clock. 100 questions in 3 hours is about 108 seconds a question. Use the free CFPS exam simulator and our free CFPS exam questions to build speed.
Exam-room rules for your handbook
NFPA allows you to tab the Fire Protection Handbook before the exam with permanent adhesive tabs, similar to the tabs supplied with the book. Sticky notes, flags, other easily movable tabs and paper clips are not permitted. Plan your tabbing early so you do not lose time on exam day.
Source: NFPA CFPS reference materials.
Why the 21st edition matters beyond the exam
The new chapters reflect real projects that fire engineers now see every week. Battery energy storage rooms, rooftop solar arrays, smart building systems and modular buildings are now common in the Gulf, Europe and Asia. The 20th edition, written in 2008, says little or nothing about them.
So the 21st edition is not only an exam book. It is a practical reference when you review a design, write a fire strategy or answer a question from a client. Many engineers keep both volumes on their desk long after they pass the CFPS exam.
Checklist before exam day
- Your book is the 21st edition: two volumes, published 2023.
- Both volumes are complete, with no loose pages or missing sections.
- All tabs are permanent adhesive tabs; no sticky notes, flags or paper clips.
- You can find any of the 21 sections in under 15 seconds.
- You have finished at least one full 100-question practice exam in 3 hours.
Watch: how to prepare for the CFPS exam
How our course follows the 21st edition
Our CFPS exam preparation course is built section by section on the Fire Protection Handbook, 21st edition. It is online and self-paced, so you can join from anywhere, including Dubai and the UAE.
| What you get | Detail |
|---|---|
| Price | USD 350 |
| Lectures | 25 hours |
| Practice | 600+ practice questions and 3 mock exams |
| Results | 200+ engineers helped, 94% pass rate, students from 26 countries |
Still deciding? Read is CFPS certification worth it.
FAQ
When was the Fire Protection Handbook 21st edition published?
NFPA released the 21st edition in early 2023. The 20th edition was published in 2008, so it was the first new edition in 15 years.
Is the CFPS exam based on the 21st edition?
Yes. Since June 2024, the CFPS exam has been based on the 21st edition of the Fire Protection Handbook, and NFPA states that the certification is based on it.
Can I take the 20th edition into the CFPS exam?
Do not plan on it. The exam is written to the 21st edition, and the Fire Protection Handbook is the only reference allowed in the room. Bring the 21st edition, and confirm any doubt with NFPA before your exam date.
How many new chapters does the 21st edition have?
14 new chapters, including energy storage systems, photovoltaic systems, the wildland/urban interface, smart infrastructure, modular construction and active shooter/hostile event operations.
Can I tab my handbook for the exam?
Yes, with permanent adhesive tabs. Sticky notes, flags, movable tabs and paper clips are not allowed.
Sources
- NFPA: Certified Fire Protection Specialist (CFPS)
- NFPA: Fire Protection Handbook
- NFPA press release on the 21st edition (NEMA, 8 Feb 2023)
- PHCP Pros: NFPA releases new edition of Fire Protection Handbook
Study the 21st edition the smart way: start the CFPS exam preparation course →
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