(P-1) Unlimited Plumbing Contractor
Apply for the License
Plumbing & Pipefitting Work Licensing Unit
450 Columbus Blvd, Suite 801
Hartford, CT 06103
PSI Services LLC
3210 E. Tropicana
Las Vegas, NV 89121
Phone: (855) 746-8171
|Subject Areas||# of|
|General Plumbing Regulations||4|
|Fixtures & Equipment||5|
|Piping, Valves, Controls||3|
|Hangers & Supports||3|
|Drain, Waste, & Vent||14|
|Traps & Interceptors||4|
|Joints & Connections||3|
|Safety & Excavation||6|
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 Plumbing Code, 2015, 2018 or 2021, ICC
NFPA 54: National Fuel Gas Code [or] National Fuel Gas Code Handbook, 2012, NFPA
NFPA 58: Liquefied Petroleum Gas Code, 2014, NFPA
Code of Federal Regulations, 29 CFR Part 1926 (OSHA), GPO [or] (OSHA) Selections by PSI, 2013
Water Processing - Residential, Commercial, Light‑Industrial, 3rd Edition, Water Quality Association
Standard for Fire and Explosion Prevention During Cleaning and Purging of Flammable Gas Piping Systems, 2017, NFPA
Books NOT Allowed in the Exam
Mathematics for Plumbers and Pipefitters, 8th Edition, Lee Smith
Plumbing Design and Installation, 4th Edition, 2011, Les Ripka, ATP
Available Study Materials
PSI OSHA Selections
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.