49 CFR § 195.583 Transportation of Hazardous Liquids by Pipeline

§ 195.583 What must I do to monitor atmospheric corrosion control?

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

⚠ 19 pending changes to Part 195

(a) You must inspect each pipeline or portion of pipeline that is exposed to the atmosphere for evidence of atmospheric corrosion, as follows:

If the pipeline is
located:
Then the frequency of inspection is:
OnshoreAt least once every 3 calendar years, but with intervals not exceeding 39 months.
OffshoreAt least once each calendar year, but with intervals not exceeding 15 months.

(b) During inspections you must give particular attention to pipe at soil-to-air interfaces, under thermal insulation, under disbonded coatings, at pipe supports, in splash zones, at deck penetrations, and in spans over water.

(c) If you find atmospheric corrosion during an inspection, you must provide protection against the corrosion as required by § 195.581.

← § 195.581 Which pipelines must I protect against atmospheric corrosion and what coating material may I use?§ 195.585 What must I do to correct corroded pipe? →