Licensing Exams by Trade Name - Home Link


(SM-3) Limited Sheet Metal Residential/Light Commercial Contractor

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Connecticut DCP
Heating, Cooling & Sheet Metal Licensing Unit

450 Columbus Blvd, Suite 801
Hartford, CT  06103
(860) 713-6135
Exam Provider
PSI Services LLC
3210 E. Tropicana
Las Vegas, NV  89121
Phone:  (855) 746-8171
Exam Type
Exam Content
Subject Areas# of
Blueprint Reading4
General Knowledge4
Kitchen Hoods, Ventilation & Exhaust Equipment4
Exhaust Systems & Venting4
Total number of test questions:
Time allowed (hours):

In addition to the trade-specific examination, you are required to pass the Connecticut Business & Law Exam offered by PSI.

Books Allowed in the Exam
International Mechanical Code, 2015, 2018 or 2021, ICC
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NFPA 90A: Standard for the Installation of Air Conditioning and Ventilation Systems, 2012, NFPA
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ACCA Ductulator (Duct Slide Rule), ACCA
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Code of Federal Regulations, 29 CFR Part 1926 (OSHA), GPO [or] (OSHA) Selections by PSI, 2013
Buy from PSI
Fibrous Glass Duct Construction Standards (AH116), 5th Edition, NAIMA
PDF File Link
HVAC Duct Construction Standards - Metal and Flexible, 3rd Edition, SMACNA
Buy at Amazon
Modern Welding, 11th Edition, 2013, Althouse, Turnquist, Bowditch
Buy at Amazon

NOTE:  Use of the 2021 version of the IMC (reference #1) will not start until Sept 1, 2023).

Books NOT Allowed in the Exam
Sheet Metal, 2nd Edition, Leo Meyer
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Available Study Materials
Download OSHA Guide
Discount policy
PSI OSHA Selections
Study Guide

Sample questions are based on the PSI publication titled “29 CFR PART 1926 Selections, as of June 2013” (highlighted in green above).

This file contains approx. 800 sample questions.

REMINDER:  PSI uses this book for many exams they offer.  Not all sections of this code will apply to your exam.

We also include a table showing the relationship between our questions and OSHA code sections.  Corrections to the original PSI publication are noted. The index/table is availble for veiwing before you purchnse from the button above.

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