Can repairs and alterations be performed by owner/operators with a certificate of operation?

Repairs and alterations to boilers must adhere to strict standards to ensure safety and compliance with regulations. Holding an "R" stamp indicates that a company or individual has been granted authorization by the National Board of Boiler and Pressure Vessel Inspectors to perform repairs and alterations. This stamp confirms that the entity follows the required procedures, standards, and qualifications necessary for safely executing such work.

Thus, an owner or operator with an "R" stamp is recognized as being qualified to perform these repairs and alterations, adhering to the specific guidelines outlined in the applicable codes, such as the ASME Boiler and Pressure Vessel Code. This distinguishes them from those who may not have the specialized certification or training necessary for safe and compliant boiler work.

In contrast, just having a certificate of operation or being an owner/operator without the "R" stamp does not provide the same level of assurance regarding ability or compliance with safety standards. The other options hint at various forms of supervision or licensing that might limit the capacity to perform repairs, which would not meet the qualifications recognized for performing such complex tasks on boilers.