04 NCAC 11 R06-40
Each customer's piping system shall be tested for leaks before service is turned on.
(2) Leakage Test. - Before turning on a gas meter at any location, the piping system supplied shall be tested for leaks by a method at least equal to that described in section 2.13, "Leakage Check after Gas Turn‑On," in the latest edition of the American Standard Installation of Gas Appliances and Gas Piping in Buildings, ASA Z21.30.
(NCUC Docket No. M‑100, Sub 75, 10/27/77.)