API RP 2200 pdf download Repairing Hazardous Liquid Pipelines 4Preliminary Knowledge4.1Personnel Qualified oversight is a prerequisite to the successful implementation of pipeline repair practices.Regulatoryrequirements for the qualification of pipeline personnel performing repair activities are covered in DOT Regulation 49CFR 195.501 through 195.509 of Subpart G (Operations and Maintenance). Guidance for the development andimplementation of operator qualification (oQj programs and procedures...