Part 255 Operations

Section	Description
255.601	Scope
255.603	General provisions
255.604	Operator qualification
255.605	Essentials of operating and maintenance plan
255.607	Verification of pipeline materials and attributes: Onshore steel transmission pipelines
255.609	Change in class location: Required study
255.610	Change in class location: Change in valve spacing.
255.611	Change in class location: Confirmation or revision of maximum allowable operating pressure
255.613	Continuing surveillance
255.614	Damage prevention program
255.615	Emergency plans
255.616	Customer education and information program
255.619	Maximum allowable operating pressure: Steel or plastic pipelines
255.621	Maximum allowable operating pressure: High pressure distribution systems
255.623	Maximum and minimum allowable operating pressure: Low pressure distribution systems
255.624	Maximum allowable operating pressure reconfirmation: Onshore steel transmission pipelines
255.625	Odorization of gas
255.627	Tapping pipelines under pressure
255.629	Purging of pipelines
255.631	Control room management
255.632	Engineering critical assessment for maximum allowable operating pressure reconfirmation: Onshore steel transmission pipelines
255.634	Transmission lines: onshore valve shut-off for rupture mitigation
255.635	Notification of potential rupture
255.636	Transmission lines: response to a rupture capabilities of rupture-mitigation valves (RMVs) or alternative equivalent technologies