moseley....you are correct if the owner of the vessel is "Accreditied by NBIC" as an 'Owner-User inspection organization" if not the repair has to be done by a repaier holding a "R" certificate of authorization by NBIC. The reference to a contractor with "R"...
The qualification of the Welder and the welding procedure are to be done under the supervision of the "R" stamp holder. You need to receive the Welders Qualifiuctaion, Welding Procedure Specification and Procedure Qualification Record from the "R" Stamp holder on their...