Section 512.570 - Frequency and scope; authority to require preparation for inspection1. 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 boiler or pressure vessel while it is not operating and must not be conducted until any plates for a manhole or handhole or other closures of openings used for an inspection are removed. An external inspection conducted pursuant to this section must consist of an examination of the external surfaces of a boiler or pressure vessel and must be performed while the boiler or pressure vessel is in operation. An inspection conducted pursuant to this section must include operational testing of all controls and safety devices.2. A power boiler and a high-pressure, high-temperature water boiler must be inspected internally, if the construction and design of the boiler so allows, at least once each year and externally approximately 6 months after the date of the internal inspection. If an internal inspection is not possible, such a boiler must be inspected externally at least once every 6 months.3. A low-pressure heating boiler must be inspected externally at least once every year and internally, if the construction and design of the boiler so allows, at least once every 2 years.4. A hot water heating boiler and a hot water supply boiler must be inspected externally at least once every 2 years and internally, if the construction and design of the boiler so allows, at the request of the inspector or special inspector.5. A potable water heater must be inspected externally at least once every 2 years.6. Any other fired pressure vessel for which a frequency of inspection is not specified in subsections 1 to 5, inclusive, must be inspected internally, if the construction and design of the pressure vessel so allows, at least once each year.7. Except as otherwise provided in this section, a pressure vessel must be inspected externally at least once every 3 years.8. An inspector or special inspector may require any boiler or pressure vessel to be prepared for inspection if, in his or her opinion, an inspection is necessary to determine whether the boiler or pressure vessel is operating in a safe manner.9. As used in this section: (a) "External inspection" has the meaning ascribed to it in NAC 455C.042.(b) "Fired pressure vessel" has the meaning ascribed to it in NAC 455C.046.(c) "High-pressure, high-temperature water boiler" has the meaning ascribed to it in NAC 455C.050.(d) "Hot water heating boiler" has the meaning ascribed to it in NAC 455C.052.(e) "Internal inspection" has the meaning ascribed to it in NAC 455C.062.(f) "Low-pressure heating boiler" has the meaning ascribed to in NAC 455C.066.(g) "Potable water heater" has the meaning ascribed to it in NAC 455C.081.(h) "Power boiler" has the meaning ascribed to it in NAC 455C.082.Nev. Admin. Code § 512.570
Added to NAC by Div. of Industrial Relations by R141-98, eff. 1-28-2000; A by R101-02, 12-15-2004; A by R033-20A, eff. 1/21/2021; A by R026-23A, eff. 9/16/2024