(a) This part prescribes procedures used by the Pipeline and Hazardous Materials Safety Administration in carrying out duties regarding pipeline safety under 49 U.S.C. § 60101 et seq. (the pipeline safety laws) and 33 U.S.C. § 1321 (the water pollution control laws).

(b) This subpart defines certain terms and prescribes procedures that are applicable to each proceeding described in this part.

[45 FR 20413, Mar. 27, 1980, as amended by Amdt. 190-6, 61 FR 18512, Apr. 26, 1996; 70 FR 11137, Mar. 8, 2005; Amdt. 190-16, 78 FR 58908, Sept. 25, 2013]