49 C.F.R. § 192.191 Design pressure of plastic fittings.
Title 49 - Transportation
(a) Thermosetting fittings for plastic pipe must conform to ASTM D 2517. (b) Thermoplastic fittings for plastic pipe must conform to ASTM D 2513. [35 FR 13257, Aug. 19, 1970, as amended by Amdt. 192–58, 53 FR 1635, Jan. 21, 1988]
Title 49: Transportation
PART 192—TRANSPORTATION OF NATURAL AND OTHER GAS BY PIPELINE: MINIMUM FEDERAL SAFETY STANDARDS
Subpart D—Design of Pipeline Components
§ 192.191 Design pressure of plastic fittings.