California Code of Regulations
Title 8 - Industrial Relations
Division 1 - Department of Industrial Relations
Chapter 4 - Division of Industrial Safety
Subchapter 2 - Boiler and Fired Pressure Vessel Safety Orders
Article 7 - Repairs
Section 784 - Approval and Reporting of Repair

(a) No repairs to drums, shells, stayed or unstayed surface of a boiler shall be made until the contemplated repairs have been approved by a qualified inspector. (This order shall not prohibit the replacement of tubes, staybolts and/or appurtenances without inspection where replacement is necessitated by normal usage and wear.)

(b) No repairs shall be made to any boiler which has moved from its setting or foundation due to the failure of the boiler or any part thereof until approved by the division.

(c) All repairs by fusion welding or riveting to a damaged boiler or boiler support, where the safety of the boiler is concerned, shall immediately be reported to the division by the qualified inspector who authorized the repair. Complete details with sketches of all repairs, including the identification number of the welder, if welding is used, shall be submitted to the division by the qualified inspector.