New Mexico Administrative Code
Title 14 - HOUSING AND CONSTRUCTION
Chapter 9 - MECHANICAL CODES
Part 4 - BOILERS
Section 14.9.4.16 - REPAIRS/ALTERATIONS OF BOILERS AND SAFETY/SAFETY RELIEF VALVES

A. Repair organizations making repairs to boilers shall have an ASME qualified welders certificate or national board "R" stamp.

B. All repairs of boilers shall be in compliance with these rules. A report of welder repair/alteration and the completed work may be subject to the approval of the insurance company insuring the unit. The mechanical bureau may make random field site inspections.

C. Safety valves and safety relief valves shall be repaired only by organizations having a certificate of authorization code symbol stamp, ASME, "V", "HV", "UV", "NV" or a national board "VR" (repair of pressure relief valves) symbol stamp. Additionally, such repair firms when located within or doing business within the state of New Mexico shall be a New Mexico licensed contractor.

D. No repair/alteration by welding shall be made without the approval of the mechanical bureau or by a national board commissioned inspector holding a valid national board commission. If the mechanical bureau or special inspector determine a hydrostatic test is required, such test shall be applied after the repair/alteration have been completed.

E. A boiler shall be removed from service if a lap seam crack is discovered along a longitudinal riveted joint. Repairs are prohibited.