Construction Trade Exam Research Area

Environmental Air - Class B
(Uniform Code Based)

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Texas Department of Licensing & Regulation
Air Conditioning and Refrigeration Contractors

920 Colorado St.
Austin, Texas 78701
Telephone: (512) 463-6599
Toll-Free (in Texas): 800-803-9202
TX Dept of Licensing & Regulation

Exam Administrator

PSI Licensure : Certification
3210 E. Tropicana
Las Vegas, NV  89121
(800) 733-9267
PSI Web Site

Exam Type


Exam Content

Subject Areas # of
Air Distribution 15
Basic Refrigeration Components 5
Combustion Air 5
Controls 5
Equipment Requirements 10
HVACR Systems and Design 10
Piping 5
Refrigeration Principles 5
Safety 5
Service 10
Testing 10
Laws and Rules 5
Ventilation 5
Venting 5

Total number of test questions: 100
Time Allowed (Minutes) 170
Part of this exam requires knowledge of business management principles.  We offer those study materials on a separate Texas Mechanical Business and Law web page.

Go to Business and Law Offering

Books Permitted in the Exam

1. Texas Occupation Code Chapter 1302 - Air Conditioning and Refrigeration Contractors License Law Web Page Link
2. Texas Administrative Code Chapter 75 - Air Conditioning and Refrigeration Contractors License Rules Web Page Link
3. Code of Federal Regulations, Title 29, Part 1904, Recording and Reporting Occupational Injuries and Illnesses, GPO Web Page Link
4. Modern Refrigeration and Air Conditioning, 20th Edition, 2017, Althous, Turnquist, Bowditch, Bracciano. Buy at Amazon
5. ADI Duct Size Calculator, Air Distribution Institute Buy from Publisher
6. Manual D -- Residential Duct Design, 2014, ACCA Buy at Amazon
7. Manual J - Residential Load Calculations, 8th/2.50, 2016, ACCA Buy at Amazon
8. Uniform Mechanical Code, 2012, IAPMO Buy at Amazon
NOTE:  The exam is not specific to the International vs. the Uniform plumbing code.  You only need to study one code.  If you are using the International code for your references, use this link for study materials.

Recommended Study Materials

Texas • Environmental Air - Class B
Product Name Value  
Comprehensive Tutorial price Description
Practice Tests ( 3 ) price Description
The items above can only be ordered as part of the "Bundle" below and delivered by E-mail at this time

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The Bundle

Price includes Tutorial(s), and Practice Tests listed above (may also include extra bonus files for specific subjects such as concrete, fire codes, excavation, electrical, etc.)

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