Section 455C.114 - Exemptions from provisionsThe provisions of NAC 455C.020 to 455C.300, inclusive, and sections 2 and 3 of LCB File No. R033-21 do not apply to:
1. Boilers and pressure vessels governed by the provisions of chapter 512 of NRS and, except as otherwise provided in section 8, chapter 512 of NAC.2. Boilers and pressure vessels installed or used in a single-family residence unless the boiler or pressure vessel is a:(a) Hot water supply boiler;(b) Hot water supply tank that has a storage capacity which exceeds 120 gallons;(c) Low-pressure heating boiler;(e) Pressure vessel that: (1) Operates at pressures that exceed 15 PSIG; or(2) Has a storage capacity of 5 cubic feet or more by volume.3. Boilers and pressure vessels under the control of the Federal Government.4. Unfired pressure vessels meeting the requirements of the United States Department of Transportation for the shipment of liquids or gases under pressure.5. Unfired pressure vessels having an inside diameter not exceeding 6 inches (152 millimeters).6. Unfired pressure vessels containing cold water under pressure, including those containing air, the compression of which serves only as a cushion.7. A water heater or a pressure vessel containing water heated by steam or by any other indirect means, if none of the following limitations is exceeded: (a) An input of heat of 199,999 British thermal units per hour (58,600 watts).(b) A water temperature of 210 degrees Fahrenheit (99 degrees Centigrade).(c) A water capacity of 120 gallons (450 liters).8. Unfired pressure vessels that do not exceed 5 cubic feet in volume and 15 PSIG.9. An unfired pressure vessel that may be classified as a pressure container which is an integral part or component of a rotating or reciprocating mechanical device, including a pump, compressor, turbine, generator, engine and hydraulic or pneumatic cylinder where the primary considerations of or stresses in the design, or both, are derived from the functional requirements of the device.10. Unfired pressure vessels used for the storage of compressed air only.11. A hot water heater constructed of continuous coils, which is used only to produce steam vapor to clean machinery, equipment and buildings, if: (a) The tubing or pipe size does not exceed three-fourths of an inch in diameter and drums and headers are not attached;(b) The nominal water containing capacity does not exceed 6 gallons;(c) The water temperatures do not exceed 350 degrees Fahrenheit; and(d) Steam is not generated within the coil, except that the provisions of NAC 455C.020 to 455C.300, inclusive, and sections 2 and 3 of LCB File No. R033-21 do apply to safety relief valves on a hot water heater constructed of continuous coils.12. Unfired pressure vessels and piping containing liquid petroleum gas and liquid natural gas.Nev. Admin. Code § 455C.114
Added to NAC by Div. of Industrial Relations by R101-02, eff. 12-15-2004; A by R045-20A, eff. 10/26/2020; A by R033-21A, eff. 9/19/2022; A by R033-21A, eff. 9/19/2022; A by R026-23A, eff. 9/16/2024