Nevada Administrative Code

NAC 512.514 “Contractor” defined. (NRS 455C.110, 512.131) “Contractor” has the meaning ascribed to it in NRS 624.020. (Added to NAC by Div. of Industrial Relations by R141-98, eff. 1-28-2000)

NAC 512.520 “Heat exchanger” defined. (NRS 455C.110, 512.131) “Heat exchanger” means a device for transferring energy in the form of heat from a warmer medium to a cooler medium, including, without limitation, a radiator. (Added to NAC by Div. of Industrial Relations by R141-98, …

NAC 512.522 “Heating boiler” defined. (NRS 455C.110, 512.131) “Heating boiler” means: 1. A steam or vapor boiler intended for operation at pressures not exceeding 15 PSIG; or 2. A hot water boiler intended for operation at pressures not exceeding 160 PSIG or temperatures of not m…

NAC 512.524 “High-pressure, high-temperature boiler” defined. (NRS 455C.110, 512.131) “High-pressure, high-temperature boiler” means a boiler in which water or other liquid is heated and which is intended for operation at pressures in excess of 160 PSIG or at temperatures in exce…

NAC 512.526 “Hot water supply boiler” defined. (NRS 455C.110, 512.131) “Hot water supply boiler” means a boiler that is completely filled with water that furnishes hot water to be used outside the boiler at pressures not exceeding 160 PSIG or at temperatures not exceeding 250°F a…

NAC 512.528 “Inspection organization” defined. (NRS 455C.110, 512.131) “Inspection organization” means an owner or user of pressure-retaining items who maintains an established inspection program and whose organization and inspection procedures comply with the National Board Insp…

NAC 512.529 “Inspector” defined. (NRS 455C.110, 512.131) “Inspector” means: 1. A boiler inspector employed by the Enforcement Section; or 2. An employee of the Mechanical Compliance Section performing any inspection service pursuant to NAC 512.155. (Added to NAC by Div. of Indust…

NAC 512.530 “Miniature boiler” defined. (NRS 455C.110, 512.131) “Miniature boiler” means a power boiler or high-pressure, high-temperature boiler that does not exceed the following limits: 1. An inside diameter of the shell of 16 inches (410 millimeters); 2. Except for electric b…

NAC 512.532 “National Board” defined. (NRS 455C.110, 512.131) “National Board” means the National Board of Boiler and Pressure Vessel Inspectors. (Added to NAC by Div. of Industrial Relations by R141-98, eff. 1-28-2000; A by R101-02, 12-15-2004)

NAC 512.534 “National Board Inspection Code” defined. (NRS 455C.110, 512.131) “National Board Inspection Code” means the manual for boiler and pressure vessel inspectors published by the National Board and adopted by reference in NAC 512.562. (Added to NAC by Div. of Industrial R…

NAC 512.536 “New boiler or pressure vessel installation” defined. (NRS 455C.110, 512.131) “New boiler or pressure vessel installation” means the construction, installation or placing into operation of or contracting for any boiler or pressure vessel on or after January 28, 2000. …

NAC 512.538 “Owner or user” defined. (NRS 455C.110, 512.131) “Owner or user” means any person who is responsible for the safe installation, operation or maintenance of any boiler or pressure vessel within this State. (Added to NAC by Div. of Industrial Relations by R141-98, eff. …

NAC 512.540 “Power boiler” defined. (NRS 455C.110, 512.131) “Power boiler” means a boiler in which steam or other vapor is generated at a pressure of more than 15 PSIG. The term includes, without limitation, a high-pressure, high-temperature boiler and a miniature boiler. (Added …

NAC 512.542 “Pressure vessel” defined. (NRS 455C.110, 512.131) “Pressure vessel” means a vessel in which pressure is obtained from an external source or by the application of heat from a direct or indirect source. The term includes, without limitation, an unfired steam boiler. (A…

NAC 512.544 “Pressure-retaining item” defined. (NRS 455C.110, 512.131) “Pressure-retaining item” means a boiler, pressure vessel, piping or material used for the containment of: 1. Internal pressure; 2. Pressure obtained from an external source; 3. Pressure obtained by the applic…

NAC 512.546 “PSIG” defined. (NRS 455C.110, 512.131) “PSIG” means pounds per square inch gauge. (Added to NAC by Div. of Industrial Relations by R141-98, eff. 1-28-2000)

NAC 512.548 “Relief valve” defined. (NRS 455C.110, 512.131) “Relief valve” means an automatic pressure-relieving device as described in section I, IV or VII of the Boiler and Pressure Vessel Code of the American Society of Mechanical Engineers that is used primarily for liquid se…

NAC 512.550 “Repair” defined. (NRS 455C.110, 512.131) “Repair” means the work necessary to restore a pressure-retaining item to a safe and satisfactory operating condition if there is no deviation from the original design. (Added to NAC by Div. of Industrial Relations by R141-98,…

NAC 512.552 “Safety relief valve” defined. (NRS 455C.110, 512.131) “Safety relief valve” means a relieving device that is: 1. Automatically pressure actuated; and 2. Suitable for use as a safety valve or relief valve, depending on the application. (Added to NAC by Div. of Industr…

NAC 512.554 “Safety valve” defined. (NRS 455C.110, 512.131) “Safety valve” means an automatic pressure-relieving device that: 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. (Adde…

NAC 512.555 “Special inspector” defined. (NRS 455C.110, 512.131) “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 b…

NAC 512.556 “Unfired steam boiler” defined. (NRS 455C.110, 512.131) “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 te…

NAC 512.558 “Water heater” defined. (NRS 455C.110, 512.131) “Water heater” means a hot water supply boiler or a closed vessel in which water is heated by the combustion of fuel, electricity or any other source and withdrawn from the heater for use outside the system of the water …

NAC 512.560 Authority of Administrator to delegate certain duties. (NRS 512.131) The Administrator may delegate any duties which the Administrator is assigned pursuant to NAC 512.155 or 512.500 to 512.594, inclusive, to the Mine Safety and Training Section of the Division, or its…

NAC 512.562 Adoption by reference of certain publications, codes and sections of codes. (NRS 455C.110, 512.131) 1. The Administrator hereby adopts by reference the National Board Inspection Code, 2001 edition and addenda, and any subsequent edition and addenda issued by the Natio…

NAC 512.564 Requirements for operation. (NRS 455C.110, 512.131) A new boiler, pressure vessel or water heater must not be operated in this State unless it is designed, constructed, inspected and installed in accordance with the Code and the provisions of NAC 512.500 to 512.594, i…

NAC 512.566 Exemptions from requirements. (NRS 455C.110, 512.131) The provisions of NAC 512.500 to 512.594, inclusive, do not apply to: 1. An unfired pressure vessel that meets the requirements of the United States Department of Transportation for the shipment of liquids or gases…

NAC 512.568 Notification of Enforcement Section by insurance company upon commencement of or change to coverage. (NRS 455C.110, 512.131) An insurance company shall notify the Enforcement Section within 30 days after the insurance company commences coverage of or cancels, refuses …

NAC 512.570 Frequency and scope; authority to require preparation for inspection. (NRS 455C.110, 512.131) 1. An internal inspection conducted pursuant to this section must consist of as complete an examination as can reasonably be made of the internal and external surfaces of a b…

NAC 512.572 Procedure upon determination of unsafe condition. (NRS 455C.110, 512.131) If an inspector or special inspector, upon his or her inspection of a boiler or pressure vessel, finds that the boiler or pressure vessel or any appurtenance thereof is in such condition as to b…

NAC 512.573 Procedure following accident. (NRS 455C.110, 512.131) If an accident occurs that renders a boiler, pressure vessel or pressure-retaining item inoperative, the owner or user shall immediately notify the Enforcement Section at (775) 684-7085. The owner or user shall inv…

NAC 512.574 Condemned boiler or pressure vessel. (NRS 455C.110, 512.131) 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…

NAC 512.575 Requirements for installation. (NRS 455C.110, 512.131) 1. A contractor shall submit a written notice to the Administrator before installing a boiler or pressure vessel in this State that is constructed in a manner that meets the standards of this State, the American S…

NAC 512.577 Requirements for reinstallation. (NRS 455C.110, 512.131) 1. If a boiler or pressure vessel is removed from its original site and reinstalled at the same location or reinstalled at a new location without a change of ownership before reinstallation, the contractor must …

NAC 512.579 Clearance: Generally. (NRS 455C.110, 512.131) Except as otherwise provided in NAC 512.577 and 512.581, if a boiler is replaced or a new boiler is installed in an existing or new building, a minimum height of at least 3 feet must be provided between the top of the boil…

NAC 512.581 Clearance: Fired storage and fired coil water heater. (NRS 455C.110, 512.131) The clearance between a wall or other structure and a fired storage and fired coil water heater must be at least that specified by the manufacturer. (Added to NAC by Div. of Industrial Relat…

NAC 512.583 Platforms or runways. (NRS 455C.110, 512.131) 1. If a valve or any appurtenance of a boiler or pressure vessel requires frequent manipulation or is so located that it cannot be reached or operated from the floor, a platform or other safe means of operation must be pro…

NAC 512.585 Repairs or alterations. (NRS 455C.110, 512.131) 1. A repair or alteration to a boiler or pressure vessel must conform to the applicable provisions of the Code or this chapter, and any jurisdictional requirements. 2. If a repair or alteration to a boiler or pressure ve…

NAC 512.587 Safety appliances: Generally. (NRS 455C.110, 512.131) Each pressure vessel must be protected by safety or relief valves and indicating and controlling devices that will ensure its safe operation. These valves and devices must be so constructed, located and installed t…

NAC 512.589 Safety appliances: Capacity. (NRS 455C.110, 512.131) 1. The capacity of a safety valve that is designed primarily for steam or vapor service must be rated in pounds per hour. 2. The capacity of a relief valve that is designed primarily for liquid service must be rated…

NAC 512.590 Qualifications of attendant. (NRS 455C.110, 512.131) A person is qualified to attend a power boiler or high-pressure, high-temperature boiler if the person has the technical training, experience and knowledge necessary to start, operate and shut down the boiler. (Adde…

NAC 512.592 Boilers: Supervision. (NRS 455C.110, 512.131) 1. Except as otherwise provided in subsection 5, a high-pressure, high-temperature boiler and a power boiler must be attended by a person who meets the qualifications set forth in NAC 512.590. 2. A steam boiler must be att…

NAC 512.594 Contractor’s license required for certain activities. (NRS 455C.110, 512.131) A person shall not undertake to, or offer to undertake to, install, construct, add to, subtract from, improve or move any boiler, pressure vessel or water heater unless the person holds a cu…

NAC 513.010 Definitions. (NRS 513.063) As used in NAC 513.010 to 513.120, inclusive, unless the context otherwise requires, the words and terms defined in NAC 513.020 to 513.050, inclusive, have the meanings ascribed to them in those sections. (Added to NAC by Comm’n on Mineral R…

NAC 513.020 “Administrator” defined. (NRS 513.063) “Administrator” means the Administrator of the Division of Minerals of the Commission on Mineral Resources. (Added to NAC by Comm’n on Mineral Resources, eff. 2-18-88)

NAC 513.030 “Mine” defined. (NRS 513.063) “Mine” means: 1. Any area where: (a) Development is conducted to prepare or open any deposit of minerals; or (b) Minerals are extracted from a surface or subsurface deposit; or 2. Any beneficiation plant, mill, smelter, refinery or other …

NAC 513.040 “Operator” defined. (NRS 513.063) “Operator” means any person operating, controlling or supervising a mine and owning the right to do so, and includes any person charged with the responsibility for the operation of a mine. (Added to NAC by Comm’n on Mineral Resources,…