(A) All service pipes hereafter installed from property lines or curb to meter shall not be less than 1¼ inches.
(B) Key valves must be used wherever directed by the Gas Inspector.
(C) For large buildings, hotels, business houses and the like, application must be made to the Gas Inspector for the size of the service required.
(D) No lead connection can be used in gas piping.
(E) No PVC pipe can be used as gas piping.
(`85 Code, § 20-71)