Save 11%TEXAS Class A HVAC Exam Codebook Complete Kit
- Official published edition — the same book your exam is written from, not a reprint or summary
- Tabbed by a licensed Master Electrician — ask and we will tab any book by hand before it ships
- Wrong edition? Exchange it — unused and unopened, within 7 days of delivery
- Bought by working tradesmen — electricians, plumbers and HVAC techs testing up
Is this the right edition for my exam?
Licensing boards adopt a specific code cycle, and it is not always the newest one. Check which edition your state or jurisdiction tests from before ordering.
See our electrician exam guides by state for the electrical trades. For plumbing and HVAC, or if you are still not sure, contact us with your state and licence level and we will point you to the right book.
Can I get this book tabbed?
Yes. We tab books by hand before they ship — tabs on every major article so you can find what you need under pressure.
Allow up to a week for a tabbed book to be prepared and shipped, since the work is done by hand. If you have an exam date coming up, order early or contact us and we will tell you what is realistic.
Is this an official book?
Every book we sell is an official published edition. We are a supplier, not a publisher — we are not affiliated with the NFPA, the ICC, or IAPMO.
Do you have this in Spanish?
We carry the official Spanish-language editions where they are published — the real translations, not summaries. Check the Libros en español collection, or contact us and we will tell you whether a Spanish edition exists for this code.
Shipping and returns
We ship within the United States. Allow up to 10 business days for delivery after your order is processed; most orders arrive sooner. Tabbed orders are prepared by hand, so allow up to a week before they ship.
Ordered the wrong edition? Contact us within 7 days of delivery and we will exchange it, as long as the book is unused and unopened. Damaged or incorrect items are on us. Full terms are in our refund policy.
About this book
PSI Texas Environmental Air - Class A
Exams are based on the most recent edition unless otherwise specified below.
TX BUSINESS AND LAW REFERENCE LIST
- Texas Air Conditioning and Refrigeration Contractors License Law, Texas Occupations Code, Chapter 1302
- Texas Air Conditioning and Refrigeration Contractors License Rules, Texas Administrative Code, Chapter 75
- OSHA CFR 29 Part 1904 Recording and Reporting Occupational Injuries and Illnesses, OSHA Washington, DC
CODE REFERENCES
- Uniform Mechanical Code, 2021 Edition, International Association of Plumbing and Mechanical Officials.
- International Mechanical Code, 2021 Edition, International Code Council, Inc.
- International Fuel Gas Code, 2021 Edition, International Code Council, Inc
TECHNICAL REFERENCE LIST
- Modern Refrigeration and Air Conditioning, Althouse, Turnquist and others, Goodheart-Willcox Publishers, 22nd Edition, 2025,
- ADI Duct Size Calculator, Air Distribution Institute, www.steelduct.org
The following three references are used for Environmental Class A and Class B examinations only:
- Manual D - Residential Duct Systems, 2014 Edition, Air Conditioning Contractors of America (ACCA), www.acca.org
- Manual J - Residential Load Calculation, Eighth Edition, Version 2.50, 2016, Air Conditioning Contractors of America
- Manual S – Residential Equipment Selection, 2014 Edition, Air Conditioning Contractors of America (ACCA)
You can find the Candidate Bulletin here.
Built for tradesmen working toward the next licence
The official editions
Licensing exams are written straight from the published code. We sell the real editions, so you study the same book the test comes from.
English and Spanish
Official Spanish-language editions alongside the English ones, so the language you read in is not what holds up your licence.
Tabbed by hand
Ask for any book to be tabbed before it ships, so you can open it up and get to work instead of losing a weekend.
