Construction Trade Exam Research Area

New Mexico
(MM-4) Heat, Cooling, and Process Pipe

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Construction Industries
Regulation and Licensing Department

2550 Cerrillos Road
Santa Fe, NM 87505
(505) 476-4700
NM Regulation and Licensing Department

Apply for the Exam

PSI Exams
2820 Broadbent Parkway
Suite E & F
Albuquerque, NM  87107
Phone: (877) 663-9267
Candidate Information Web Page

Exam Type


Exam Content

Subject Areas# of
General Knowledge 29
Steam and Hot Water Boiler Systems 7
Process Piping and Systems 28
Fire Suppression Systems 6
Controls and Components 15
Combustion Air and Venting 5

Total number of test questions: 90
Time allowed (minutes): 235
In addition to the trade-specific examination(s) you may be required to pass the Business and Law Exam offered by PSI or take an "approved" Business and Law Course.

Go to Business and Law Offering

Books Allowed in the Exam

1. New Mexico Mechanical Code (NMAC 14.9.2), NMCPR Web Page Link
2. Modern Refrigeration and Air Conditioning, 19th Edition, 2013, Althous, Turnquist, Bowditch, Bracciano Buy at Amazon
3. Uniform Mechanical Code, 2015, IAPMO Buy at Amazon
4. New Mexico Boiler Rules and Regulations (NMAC 14.9.4), 2005, NMCPR PDF File Link
5. NFPA 13: Standard for the Installation of Sprinkler Systems, 2007, NFPA Buy at Amazon
6. NFPA 17: Standard for Dry Chemical Extinguishing Systems, 2009, NFPA Buy at Amazon
7. IPT's Pipe Trades Handbook, 1991, Robert A. Lee, IPT Publishing Buy at Amazon

Books NOT Allowed in the Exam

1. New Mexico Plumbing Code (NMAC 14.8.2), NMCPR Web Page Link
2. Uniform Plumbing Code, 2015, IAPMO Buy at Amazon
3. Low Pressure Boilers, 4th Edition, 2012, Frederick Steingress Buy at Amazon
4. NFPA 31: Standard for the Installation of Oil-Burning Equipment, (2001, out of print), 2011, NFPA Buy at Amazon
5. Pressure and Enthalpy Charts are allowed in the examination. (see bulletin for restrictions)  
Study materials are currently NOT available for this exam

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