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PSI Nevada C-1 Plumbing and Heating Contractor Certification Package


The exam consists of 120 questions in 300 minutes. The minimum score required to pass is 70%, meaning one must answer 84 questions correctly to pass.

 To be certified The Nevada Contractor Management Survey exam must be taken as well.

The Nevada State Contractors Board has approved the Examination Content Outlines. The outlines reflect the minimum knowledge required by contractors to perform their duties to the public in a competent and responsible manner. Changes in the content of the examinations will not be made until changes are made in the reference books.

The examination questions reference specific national codes. However when practicing as a contractor you must check with each local jurisdiction to ensure compliance with additional regulations or modifications adopted by that jurisdiction.

If there is conflicting information between a code, law, or regulation and another authorized reference text, please be aware that the requirements of the code, law, or regulation prevail, and that the examination questions will be referenced to the code, law, or regulation.

The examination may include questions on:
Reading and interpreting construction codes and regulations.
Nevada Health department regulations.  
Appropriate building codes.  
Trade materials, tools, equipment and methods.  
Nevada Occupational Safety and Health Rules.

Scope of Work
A person who holds a classification C-1 license may perform any of the work authorized for the subclassifications of the classification C-1 license, including: the installation of boilers and pipes for hot water and steam, including all related fittings, valves, gauges, pumps, radiators, convectors, tanks and lines for fuel oil, chimneys, flues, insulation and other appurtenances; the fabrication and installation of all systems of sprinklers for protection from fire, including the appurtenances; the insulation of pipes, ducts and related equipment. A C-1 licensee may also perform the installation and maintenance of material and fixtures to create sanitary conditions in buildings by providing a permanent means for a supply of safe water and any sanitary waste and vent systems that are required to ensure the appropriate removal of waste from these buildings; drainage systems for roofs; hydronic heating systems not exceeding 200,000 British thermal units; systems of landscape irrigation; systems to heat potable water, including, without limitation, solar equipment; a permanent means to supply gas for residential and industrial purposes; and pipes for compressed air, vacuums and gases for medical use. A C-1 licensee may also perform the selection, cutting, shaping, fabrication and installation of sheet metal, including, without limitation, cornices, flashings, gutters, leaders, downspouts for rainwater, pans, food service equipment, ducts, louvres, patented chimneys, flues, and metal roof systems. A C-1 licensee may also perform the fabrication and installation of systems for the heating, evaporative cooling and circulation of air, including, without limitation, the installation of solar equipment for that purpose; the installation of pipes from the source of supply of liquefied petroleum and natural gas into a building or structure and the installation of the related vents; the installation, replacement and repair of water heaters, including the connection to existing lines for potable water and gas, the necessary venting and other incidental connections; the fabrication, installation, repair and removal of pipes, pumps, valves and other equipment used in the transfer of chilled water for the control of temperature; the installation, replacement and repair of systems to replenish breathing air for firefighters; and the fabrication, installation, repair and removal of pipes and equipment used for the transmission of water, steam, gas, chemicals, food and other substances for industrial use.

The reference material listed below was used to prepare the questions for this examination. The examination may also contain questions based on trade knowledge or general industry practices. Except for Code books, you can base your answers on later editions of references as they become available. For Code questions, the examinations will be based only on the edition of the Code book that is listed.

This examination is OPEN BOOK.

The following reference materials are allowed in the examination center:

Uniform Plumbing Code, 2012

Uniform Mechanical Code, 2012

NFPA 54 - Standard for National Fuel Gas Code, 2012

NFPA 58 - Standard for Liquid Petroleum Gas Code, 2014,

NFPA 13 - Standard for Installation of Sprinkler Systems, 2007

The following reference materials are not allowed in the examination center:

Code of Federal Regulations - 29 CFR Part 1926 (OSHA)

Modern Hydronic Heating for Residential and Light Commercial Buildings

Solar Water and Pool Heating Design and Installation Manual

Mathematics for Plumbers and Pipefitters, Lee Smith, 8th Edition, 2013

Modern Refrigeration and Air Conditioning, 19th or 20th Edition

Modern Welding, 11th Edition, 2013

Facility Piping Systems Handbook, 3 rd Edition,

Candidates are responsible for bringing their own references to the examination center. Reference materials may be highlighted, underlined, and/or indexed prior to the examination session. However, references may not be written in, prior to nor during the examination session. Any candidate caught writing or highlighting in the references during the examination will have the references confiscated and will be reported to the department. Furthermore, candidates are not permitted to bring in any additional papers (loose or attached) with their approved references. Any additional materials will be removed from the references and confiscated. References may be tabbed/indexed with permanent tabs only. Temporary tabs, such as Post-It notes, are not allowed and must be removed from the reference before the exam will begin.

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