Nevada Administrative Code

NAC 455C.066 “Low-pressure heating boiler” defined. (NRS 455C.110) “Low-pressure heating boiler” means a: 1. Steam or vapor boiler that operates at pressures not exceeding 15 PSIG; or 2. Hot water boiler that: (a) Operates at pressures not exceeding 160 PSIG or temperatures of no…

NAC 455C.068 “National Board” defined. (NRS 455C.110) “National Board” means the National Board of Boiler and Pressure Vessel Inspectors. (Added to NAC by Div. of Industrial Relations by R101-02, eff. 12-15-2004)

NAC 455C.070 “National Board Inspection Code” defined. (NRS 455C.110) “National Board Inspection Code” means the manual for boiler and pressure vessel inspectors published by the National Board and adopted by reference in NAC 455C.108. (Added to NAC by Div. of Industrial Relation…

NAC 455C.072 “New boiler or pressure vessel” defined. (NRS 455C.110) “New boiler or pressure vessel” means a boiler or pressure vessel that is constructed, installed, placed into operation or contracted for use in this State on or after December 15, 2004. (Added to NAC by Div. of…

NAC 455C.074 “Nonstandard boiler or pressure vessel” defined. (NRS 455C.110) “Nonstandard boiler or pressure vessel” means a boiler or pressure vessel that: 1. Does not bear a stamp of the American Society of Mechanical Engineers or of a standard of construction which is approved…

NAC 455C.076 “Operating permit” defined. (NRS 455C.110) “Operating permit” means a permit required by NRS 455C.100 and issued by the Mechanical Compliance Section for the operation of a boiler or pressure vessel. (Added to NAC by Div. of Industrial Relations by R101-02, eff. 12-1…

NAC 455C.078 “Person” defined. (NRS 455C.110) “Person” means a natural person, any form of business organization and any other legal entity, including, without limitation, a corporation, partnership, association, trust, unincorporated organization, government or governmental subd…

NAC 455C.080 “Portable boiler or pressure vessel” defined. (NRS 455C.110) “Portable boiler or pressure vessel” means a boiler or pressure vessel that is intended primarily for temporary use and has a construction that allows it to be moved readily from one location to another. (A…

NAC 455C.081 “Potable water heater” defined. (NRS 455C.110) “Potable water heater” means a fired heater for the storage of water which has a corrosion-resistant lining and is used to supply potable hot water. (Added to NAC by Div. of Industrial Relations by R101-02, eff. 12-15-20…

NAC 455C.082 “Power boiler” defined. (NRS 455C.110) “Power boiler” means a boiler in which steam or other vapor is generated at a pressure of more than 15 PSIG. The term includes a high-pressure, high-temperature water boiler. (Added to NAC by Div. of Industrial Relations by R101…

NAC 455C.084 “Pressure vessel” defined. (NRS 455C.110) “Pressure vessel” has the meaning ascribed to it in NRS 455C.080. (Added to NAC by Div. of Industrial Relations by R101-02, eff. 12-15-2004)

NAC 455C.086 “PSIG” defined. (NRS 455C.110) “PSIG” means pounds per square inch gauge. (Added to NAC by Div. of Industrial Relations by R101-02, eff. 12-15-2004)

NAC 455C.088 “Reinstalled boiler or pressure vessel” defined. (NRS 455C.110) “Reinstalled boiler or pressure vessel” means a boiler or pressure vessel removed from its original setting and reinstalled at the same location or at a new location with or without a change of ownership…

NAC 455C.090 “Relief valve” defined. (NRS 455C.110) “Relief valve” means an automatic pressure-relieving device as described in section I, IV or division 1 of section VIII of the ASME Boiler and Pressure Vessel Code, as adopted by reference in NAC 455C.108. (Added to NAC by Div. …

NAC 455C.092 “Repair” defined. (NRS 455C.110) “Repair” means the work necessary to restore a boiler, pressure vessel or relief valve to a safe and satisfactory operating condition, without deviation from the original design. (Added to NAC by Div. of Industrial Relations by R101-0…

NAC 455C.094 “Safety relief valve” defined. (NRS 455C.110) “Safety relief valve” means a relieving device, which is: 1. Automatically pressure actuated; and 2. Suitable for use either as a safety valve or relief valve, depending on the application. (Added to NAC by Div. of Indust…

NAC 455C.096 “Safety valve” defined. (NRS 455C.110) “Safety valve” means an automatic pressure-relieving device, which: 1. Is actuated by the static pressure upstream of the valve; and 2. Has a full-opening, spring-pop type action that is used for gas or vapor service. (Added to …

NAC 455C.098 “Secondhand boiler or pressure vessel” defined. (NRS 455C.110) “Secondhand boiler or pressure vessel” means a boiler or pressure vessel which has changed ownership and has been moved since its original installation. (Added to NAC by Div. of Industrial Relations by R1…

NAC 455C.100 “Special inspector” defined. (NRS 455C.110) “Special inspector” means a boiler inspector who holds a certificate and who is employed or retained as an independent contractor by: 1. An insurance company that is licensed in this State to write insurance for a boiler or…

NAC 455C.102 “Standard boiler or pressure vessel” defined. (NRS 455C.110) “Standard boiler or pressure vessel” means a boiler or pressure vessel which: 1. Bears the stamp of the American Society of Mechanical Engineers or of a standard of construction that is approved by the Nati…

NAC 455C.104 “Structure” defined. (NRS 455C.110) “Structure” means a wall, column or any equipment located in the area of a boiler or pressure vessel that is being installed. (Added to NAC by Div. of Industrial Relations by R101-02, eff. 12-15-2004)

NAC 455C.106 “Unfired steam boiler” defined. (NRS 455C.110) “Unfired steam boiler” means an unfired pressure vessel or a system of unfired pressure vessels intended for operation at a pressure in excess of 15 PSIG to produce and control an output of thermal energy. The term inclu…

NAC 455C.107 “Water heater” defined. (NRS 455C.110, 455C.112) “Water heater” has the meaning ascribed to it in NRS 455C.085. (Added to NAC by Div. of Industrial Relations by R033-21, eff. 9-28-2022)

NAC 455C.108 Adoption by reference of certain publications, codes and sections of codes; review of revisions. (NRS 455C.110) 1. The Division hereby adopts by reference: (a) The following sections of the ASME Boiler and Pressure Vessel Code, 2019 edition and addenda, published by …

NAC 455C.112 Prerequisites to operation of new boiler or pressure vessel. (NRS 455C.110) A new boiler or pressure vessel must not be operated in this State unless: 1. The owner of the boiler or pressure vessel has complied with the requirements for an operating permit set forth i…

NAC 455C.114 Exemptions from provisions. (NRS 455C.110, 455C.112) The provisions of NAC 455C.020 to 455C.300, inclusive, do not apply to: 1. Boilers and pressure vessels governed by the provisions of chapter 512 of NRS and chapter 512 of NAC. 2. Boilers and pressure vessels insta…

NAC 455C.116 Procedure to obtain exemption for certain conditions or practices; grant of certain exemptions by Chief. (NRS 455C.110) 1. An owner of a boiler or pressure vessel who wishes to obtain an exemption from a requirement set forth in NAC 455C.020 to 455C.300, inclusive, f…

NAC 455C.118 Fees of Mechanical Compliance Section. (NRS 455C.110, 455C.112, 455C.120) 1. Except as otherwise provided in subsections 3 and 4, the Mechanical Compliance Section shall charge and collect the following fees: Certificates Fees For the issuance of a certificate.......…

NAC 455C.120 Notification by insurance companies. (NRS 455C.110) An insurance company shall notify the Mechanical Compliance Section within 30 days after the insurance company: 1. Commences the coverage of a boiler or pressure vessel; or 2. Cancels, refuses to renew or suspends t…

NAC 455C.130 Application for certificate; issuance and expiration of certificate and card for identification. (NRS 455C.110) 1. An applicant for a certificate to work as a special inspector must submit to the Mechanical Compliance Section: (a) An application on a form prescribed …

NAC 455C.132 Examination for certificate: Education and experience required; application; conduct; failure to pass. (NRS 455C.110) 1. An applicant for examination for a certificate must have the education and experience required by the code. 2. The application for examination mus…

NAC 455C.134 Annual renewal of certificate and card for identification. (NRS 455C.110) To renew a certificate and card for identification, a special inspector must, before the expiration of the certificate and card, submit to the Mechanical Compliance Section: 1. An application o…

NAC 455C.140 Requirement; duration; location. (NRS 455C.110) 1. The owner of a boiler or pressure vessel must obtain an operating permit before the boiler or pressure vessel may be operated in this State unless the boiler or pressure vessel is exempted from that requirement pursu…

NAC 455C.142 Cancellation; issuance after reinstallation. (NRS 455C.110) The Mechanical Compliance Section shall cancel an operating permit for a boiler or pressure vessel if it is moved from the site at which the boiler or pressure vessel was inspected. If the boiler or pressure…

NAC 455C.150 Inspection for operating permit: Internal inspection. (NRS 455C.110) An inspection for an operating permit must be an internal inspection if required by the Mechanical Compliance Section. If the Mechanical Compliance Section does not require an internal inspection, t…

NAC 455C.152 Inspection for operating permit: Time and manner. (NRS 455C.110) 1. The inspection for an operating permit must be conducted before the expiration date of the operating permit at a time agreed upon by the inspector or special inspector and the owner of the boiler or …

NAC 455C.154 Inspection for operating permit: General requirements; action on report of or refusal to allow inspection. (NRS 455C.110) 1. The Mechanical Compliance Section shall issue, renew or revoke an operating permit based on the report of an inspection by an inspector or spe…

NAC 455C.156 Frequency and scope of inspections; authority to require preparation for inspection; authorization to change interval between inspections; inspectors performing inspections; requirement to allow inspector to enter premises to carry out inspection. (NRS 455C.110, 455C…

NAC 455C.158 Preparation for inspection. (NRS 455C.110) 1. The owner of a boiler or pressure vessel or his or her agent shall prepare each boiler or pressure vessel for internal inspection and shall apply a hydrostatic or pressure test, whenever necessary, on the date specified b…

NAC 455C.160 Improper preparation for inspection. (NRS 455C.110) If a boiler or pressure vessel has not been properly prepared for a required inspection, or if the owner of a boiler or pressure vessel or his or her agent fails to comply with the requirements for a hydrostatic or …

NAC 455C.162 Removal of covering; inaccessible parts. (NRS 455C.110) 1. If a boiler or pressure vessel is covered so that the longitudinal seams of shells, drums or domes cannot be seen, sufficient covering, setting wall or other form of casing or housing must be removed to permi…

NAC 455C.164 External evidence of leak or crack. (NRS 455C.110) If, upon an external inspection of a boiler or pressure vessel, there is evidence of a leak or crack, sufficient covering of the boiler or pressure vessel must be removed to allow the inspector or special inspector t…

NAC 455C.166 Report of inspection by special inspector. (NRS 455C.110) A special inspector shall submit to the Mechanical Compliance Section within 10 days after the inspection, on a form prescribed by the Mechanical Compliance Section, a report of each inspection he or she is re…

NAC 455C.168 Procedure upon determination of violation of code. (NRS 455C.110) If an inspector or special inspector determines that there is a violation of the code, the inspector or special inspector shall notify the owner of the boiler or pressure vessel in writing and describe…

NAC 455C.170 Procedure upon determination of unsafe condition. (NRS 455C.110) If, as the result of an inspection, the inspector or special inspector determines that the continued operation of a boiler or pressure vessel constitutes an unsafe condition, the inspector or special in…

NAC 455C.172 Procedure following accident. (NRS 455C.110) If an accident occurs which renders a boiler or pressure vessel inoperative, the owner of the boiler or pressure vessel or his or her agent shall immediately notify the Mechanical Compliance Section in writing and submit a…

NAC 455C.174 Condemned boilers or pressure vessels. (NRS 455C.110) 1. An inspector or special inspector shall stamp a boiler or pressure vessel that he or she has inspected and declared unsafe with the letters “XXX” on each side of the number that indicates the registration of th…