A significant increase in the normal operating pressure of a distribution or transmission pipeline shall be made in accordance with 49 CFR Part 192 , Subpart K (relating to uprating) as of May 1, 1986, and subsequent amendments thereto which have been ratified by the Commission under § 59.33 (relating to safety). A leak survey of mains and services shall be made prior to increasing the pressure initially and also following each incremental increase in pressure. Structures abutting or adjacent to the gas mains shall be inspected to confirm the utility's records as to the presence or absence of a gas service line on each property.
52 Pa. Code § 59.35
The provisions of this §59.35 amended under the Public Utility Code, 66 Pa.C.S. § § 501, 1501, 1504, 1507 and 1508.