49 CFR § 195.559 Transportation of Hazardous Liquids by Pipeline

§ 195.559 What coating material may I use for external corrosion control?

Current through Sep 25, 2026 · Read all of Part 195

⚠ 19 pending changes to Part 195

Coating material for external corrosion control under § 195.557 must—

(a) Be designed to mitigate corrosion of the buried or submerged pipeline;

(b) Have sufficient adhesion to the metal surface to prevent under film migration of moisture;

(c) Be sufficiently ductile to resist cracking;

(d) Have enough strength to resist damage due to handling and soil stress;

(e) Support any supplemental cathodic protection; and

(f) If the coating is an insulating type, have low moisture absorption and provide high electrical resistance.

← § 195.557 Which pipelines must have coating for external corrosion control?§ 195.561 When must I inspect pipe coating used for external corrosion control? →