NAC512.585. Repairs or alterations.

     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 vessel is necessary, an inspector or special inspector must be consulted regarding the appropriate method for making the repair or alteration. After the repair or alteration is made, the inspector or special inspector shall inspect it pursuant to the Code. The person who makes such a repair or alteration shall submit to the Administrator the appropriate “R” form prescribed by the National Board within 30 days after completion of the repair or alteration.

     3. A person who makes a repair or alteration to a boiler or pressure vessel must be qualified pursuant to the National Board Inspection Code.

     4. A person who makes a repair or alteration to a boiler or pressure vessel by fusion welding to the pressure parts of the boiler or pressure vessel must hold a valid certificate of authorization and stamp designated as “R,” which have been issued by the National Board.

     5. A repair or alteration made by fusion welding must not be made to the pressure parts of a boiler constructed of cast iron.

     6. A person who is in the business of repairing safety valves must have a certificate of authorization from the National Board for the use of a National Board Pressure Relief Valve Repair stamp, designated by the National Board as a “VR” stamp.

     7. As used in this section, “alteration” means a change in any item described in the data report from the original manufacturer for the boiler or pressure vessel which affects the capability of the boiler or pressure vessel to contain pressure and which includes:

     (a) Changes which do not physically alter the boiler or pressure vessel, including, without limitation, an increase in the maximum allowable internal or external working pressure in the boiler or pressure vessel or a change in the temperature at which a boiler or pressure vessel is designed to be operated; and

     (b) A reduction in the minimum temperature of a boiler or pressure vessel which requires additional mechanical tests.

     (Added to NAC by Div. of Industrial Relations by R141-98, eff. 1-28-2000; A by R101-02, 12-15-2004)