HIGH-DENSITY POPULATION AREAS.

SEC. 102. HIGH-DENSITY POPULATION AREAS. (a) Pipeline Inventory.— Section 3 of the Natural Gas Pipeline Safety Act of 1968 (49 U.S.C. App, 1672) is amended— (1) in subsection (f)— (A) by inserting “(and, to the extent the Secretary considers necessary, operators of gathering lines that are not regulated gathering lines as such term is defined pursuant to section 21(b))” after “subject to this Act”; and (B) by inserting after the first sentence the following new sentence: “Such inventory shall also include an identification of each of the pipeline facilities of such operator which pass through an area described in regulations issued under subsection (i)(1).”; and 106 STAT. 3291 (2) by adding at the end the following new subsection: “(i) High-Density Population Areas.— “(1) Identification of facilities.— Not later than 2 years after the date of the enactment of this subsection, the Secretary shall issue regulations establishing criteria for the identification, by operators of pipeline facilities, of all pipeline facilities that are located in high-density population areas. Such regulations shall provide for such identification to be carried out through the inventory required under subsection (f). “(2) Exclusion of natural gas distribution lines.— Natural gas distribution lines shall not be included among pipeline facilities required to be identified pursuant to paragraph (1).”. (b) Maps.— Section 3(e)(2) of such Act is amended by inserting “including an identification of areas described in regulations issued under subsection (i)(1),” after “supplementary geographic description,”. (c) Inspection and Maintenance Plans.— Section 13(a)(4) of such Act (49 U.S.C. App. 1680(a)(4)) is amended by inserting “and the protection of the environment” after “public safety”.