49 C.F.R. § 192.481 Atmospheric corrosion control: Monitoring.
Title 49 - Transportation
(a) Each operator must inspect each pipeline or portion of pipeline that is exposed to the atmosphere for evidence of atmospheric corrosion, as follows: (b) During inspections the operator 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 atmospheric corrosion is found during an inspection, the operator must provide protection against the corrosion as required by §192.479. [Amdt. 192–93, 68 FR 53901, Sept. 15, 2003]
Title 49: Transportation
PART 192—TRANSPORTATION OF NATURAL AND OTHER GAS BY PIPELINE: MINIMUM FEDERAL SAFETY STANDARDS
Subpart I—Requirements for Corrosion Control
§ 192.481 Atmospheric corrosion control: Monitoring.
------------------------------------------------------------------------ Then the frequency of If the pipeline is located: inspection is:------------------------------------------------------------------------Onshore................................ At least once every 3 calendar years, but with intervals not exceeding 39 monthsOffshore............................... At least once each calendar year, but with intervals not exceeding 15 months------------------------------------------------------------------------
