Section 192.740 - Pressure regulating, limiting, and overpressure protection-Individual service lines directly connected to regulated gathering or transmission pipelines(a) This section applies, except as provided in paragraph (c) of this section, to any service line directly connected to a transmission pipeline or regulated gathering pipeline as determined in § 192.8 that is not operated as part of a distribution system.(b) Each pressure regulating or limiting device, relief device (except rupture discs), automatic shutoff device, and associated equipment must be inspected and tested at least once every 3 calendar years, not exceeding 39 months, to determine that it is:(1) In good mechanical condition;(2) Adequate from the standpoint of capacity and reliability of operation for the service in which it is employed;(3) Set to control or relieve at the correct pressure consistent with the pressure limits of § 192.197 ; and to limit the pressure on the inlet of the service regulator to 60 psi (414 kPa) gauge or less in case the upstream regulator fails to function properly; and(4) Properly installed and protected from dirt, liquids, or other conditions that might prevent proper operation.(c) This section does not apply to equipment installed on: (1) A service line that only serves engines that power irrigation pumps;(2) A service line included in a distribution integrity management plan meeting the requirements of subpart P of this part; or(3) A service line directly connected to either a production or gathering pipeline other than a regulated gathering line as determined in § 192.8 of this part.Amdt. 192-123, 82 FR 7998 , Jan. 23, 2017, as amended at 86 FR 2241 , Jan. 11, 2021 82 FR 7998, 3/24/2017; as amended at 86 FR 2241, 1/11/2021