# Atmospheric Corrosion Control: Monitoring [49 CFR 192.481]

- **operation:** document
- **citation:** LAC 43:XIII §2133
- **title:** Atmospheric Corrosion Control: Monitoring [49 CFR 192.481]
- **source type:** regulation
- **agency:** Louisiana Office of Conservation
- **status:** current
- **official:** true
- **published on:** Not available
- **effective on:** Not available
- **summary:** A. Each operator must inspect each pipeline or portion of pipeline that is exposed to the atmosphere for evidence of atmospheric corrosion, as follows. [49 CFR 192.481(a)] If the pipeline is located: Then the frequency of inspection is: Onshore other than a service line At least once every 3 calenda
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- **source url:** https://www.doa.la.gov/doa/osr/louisiana-administrative-code/
**body:**

A. Each operator must inspect each pipeline or portion of pipeline that is exposed to the atmosphere for evidence of atmospheric corrosion, as follows. [49 CFR 192.481(a)]

If the pipeline is located:

Then the frequency of inspection is:

Onshore other than a service line

At least once every 3 calendar years, but with intervals not exceeding 39 months.

Onshore service line

At least once every 5 calendar years, but with intervals not exceeding 63 months, except as provided in Subsection D of this Section.

Offshore

At least once each calendar year, but with intervals not exceeding 15 months.

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. [49 CFR 192.481(b)]

C. If atmospheric corrosion is found during an inspection, the operator must provide protection against the corrosion as required by §2131. [49 CFR 192.481(c)]

D. If atmospheric corrosion is found on a service line during the most recent inspection, then the next inspection of that pipeline or portion of pipeline must be within 3 calendar years, but with intervals not exceeding 39 months. [49 CFR 192.481(d)]

AUTHORITY NOTE: Promulgated in accordance with R.S. 30:501 et seq.

HISTORICAL NOTE: Promulgated by the Department of Natural Resources, Office of Conservation, LR 9:237 (April 1983), amended LR 10:529 (July 1984), LR 30:1255 (June 2004), LR 47:1145 (August 2021).
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