(a) The requirements for decommissioning pipelines are listed in Sec. 250.1750 through Sec. 250.1754.
(b) The table in this section lists the requirements if you take a DOI pipeline out of service: ----------------------------------------------------------------------------------------------------------------
(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 Sec. Sec.
250.1750-250.1754.----------------------------------------------------------------------------------------------------------------