(a) The requirements for decommissioning pipelines are listed in § 250.1750 through § 250.1754.
(b) The table in this section lists the requirements if you take a DOI pipeline out of service:
| If you have the pipeline out of service for: | Then you must: |
|---|---|
| (1) 1 year or less, | Isolate the pipeline with a blind flange or a closed block valve at each end of the pipeline. |
| (2) More than 1 year but less than 5 years, | Flush and fill the pipeline with inhibited seawater. |
| (3) 5 or more years, | Decommission the pipeline according to §§ 250.1750-250.1754. |