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

---
identifier: "/us/cfr/t49/s195.559"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "49 CFR § 195.559 - What coating material may I use for external corrosion control?"
title_number: 49
title_name: "Transportation"
section_number: "195.559"
section_name: "What coating material may I use for external corrosion control?"
chapter_name: "PIPELINE AND HAZARDOUS MATERIALS SAFETY ADMINISTRATION, DEPARTMENT OF TRANSPORTATION"
subchapter_number: "D"
subchapter_name: "PIPELINE SAFETY"
part_number: "195"
part_name: "TRANSPORTATION OF HAZARDOUS LIQUIDS BY PIPELINE"
positive_law: false
currency: "2026-03-24"
last_updated: "2026-03-24"
format_version: "1.1.0"
generator: "[email protected]"
authority: "30 U.S.C. 185(w)(3), 49 U.S.C. 5103, 60101  and 49 CFR 1.97."
regulatory_source: "Amdt. 195-22, 46 FR 38360, July 27, 1981, unless otherwise noted."
cfr_part: "195"
---


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

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.