{"operation":"document","citation":"49 CFR 195.559","title":"What coating material may I use for external corrosion control?","source_type":"regulation","agency":"Pipeline and Hazardous Materials Safety Administration","status":"current","official":true,"published_on":null,"effective_on":"2026-08-18","summary":"Coating material for external corrosion control under § 195.557 must—\n\n(a) Be designed to mitigate corrosion of the buried or submerged pipeline;\n\n(b) Have sufficient adhesion to the metal surface to prevent under film migration of moisture;\n\n(c) Be sufficiently ductile to resist cracking;\n\n(d) Have","machine_formats":{"json":"https://regulus.evalyn.ai/document/49-cfr-195-559.json","markdown":"https://regulus.evalyn.ai/document/49-cfr-195-559.md"},"app_url":"https://regulus.evalyn.ai/document/49-cfr-195-559","source_url":"https://www.ecfr.gov/on/2026-08-18/title-49/section-195.559","body":"Coating material for external corrosion control under § 195.557 must—\n\n(a) Be designed to mitigate corrosion of the buried or submerged pipeline;\n\n(b) Have sufficient adhesion to the metal surface to prevent under film migration of moisture;\n\n(c) Be sufficiently ductile to resist cracking;\n\n(d) Have enough strength to resist damage due to handling and soil stress;\n\n(e) Support any supplemental cathodic protection; and\n\n(f) If the coating is an insulating type, have low moisture absorption and provide high electrical resistance.","truncated":false,"body_characters":533}