# HAR 6-77-69 Control of the pressure of gas delivered from high-pressure distribution **Citation:** HAR 6-77-69 **Type / status:** regulation / current **Agency:** Hawaii Public Utilities Commission **Effective:** 1994-09-03 **Published:** 1994-04-15 systems. (a) If the maximum actual operating pressure of the distribution system is under 60 p.s.i.g. and a service regulator having the following characteristics is used, no other pressure limiting device is required: (1) A regulator capable of reducing distribution line pressure to pressures recom ## Document text systems. (a) If the maximum actual operating pressure of the distribution system is under 60 p.s.i.g. and a service regulator having the following characteristics is used, no other pressure limiting device is required: (1) A regulator capable of reducing distribution line pressure to pressures recommended for household appliances; (2) A single port valve with proper orifice for the maximum gas pressure at the regulator inlet; (3) A valve seat made of resilient material designed to withstand abrasion of the gas, impurities in gas, cutting by the valve, and to resist permanent deformation when it is pressed against the valve port; (4) Pipe connections to the regulator not exceeding two inches in diameter; (5) A regulator that, under normal operating conditions, is able to regulate the downstream pressure within the necessary limits of accuracy and to limit the build-up of pressure under no-flow conditions to prevent a pressure that would cause the unsafe operation of any connected and properly adjusted gas utilization equipment; (6) A self-contained service regulator with no external static or control lines. (b) If the maximum actual operating pressure of the distribution system is 60 p.s.i.g., or less, and a service regulator that does not have all of the characteristics listed in subsection (a) is used, or if the gas contains materials that seriously interfere with the operation of service regulators, there must be suitable protective devices to prevent unsafe overpressuring of the customer's appliances if the service regulator fails. (c) If the maximum actual operating pressure of the distribution system exceeds 60 p.s.i.g., one of the following methods must be used to regulate and limit, to the maximum safe value, the pressure of gas delivered to the customer: (1) A service regulator having the characteristics listed in subsection (a), and another regulator located upstream from the service regulator. The upstream regulator may not be set to maintain a pressure higher than 60 p.s.i.g. A device must be installed between the upstream regulator and the service regulator to limit the pressure on the inlet of the service regulator to 60 p.s.i.g. or less in case the upstream regulator fails to function properly. This device may be either a relief valve or an automatic shutoff that shuts, if the pressure on the inlet of the service regulator exceeds the set pressure (60 p.s.i.g. or less), and remains closed until manually reset; (2) A service regulator and a monitoring regulator set to limit, to a maximum safe value, the pressure of the gas delivered to the customer; (3) A service regulator with a relief valve vented to the outside atmosphere, with the relief valve set to open so that the pressure of gas going to the customer does not exceed a maximum safe value. The relief valve may either be built into the service regulator or it may be a separate unit installed downstream from the service regulator. This combination may be used alone only in those cases where the inlet pressure on the service regulator does not exceed the manufacturer's safe working pressure rating of the service regulator, and may not be used where the inlet pressure on the service regulator exceeds 125 p.s.i.g. For higher inlet pressures, the methods in subsection (c)(1) or (2) must be used; (4) A service regulator and an automatic shutoff device that closes upon a rise in pressure downstream from the regulator and remains closed until manually reset. [Eff ] (Auth: HRS '269-6) (Imp: 49 C.F.R. '192.197, October 1, 1990) ## Provenance - Official: Yes - Source: - Source ID: `hi-puc-har-6-77` - SHA-256: `ab157c27cb182446dcfc6d09b64b20f5cc559fd2fb30036a91a62b5926fc2ee3` - Retrieved: 2026-08-12T08:22:24.168Z - Exported: 2026-08-24T14:48:17.648Z - Document slug: `hi-har-har-6-77-69` ### Source metadata ```json { "jurisdiction": "US-HI", "chapter": "HAR Chapter 6-77", "provisionKind": "section", "adoptedOn": "1994-04-15", "filedOn": "1994-08-24", "exactEffectiveDateAvailableInPublication": true, "publicationStatus": "officially-published-superseded-slated-for-repeal", "phmsaProgramParticipant": false, "stateCertificationRepresented": false, "federalInspectionAndEnforcement": [ "interstate gas", "intrastate gas", "interstate hazardous liquid", "intrastate hazardous liquid" ], "fixedFederalBaseline": "1990-10-01", "editorialModernizationApplied": false, "references": [ { "citation": "49 CFR 192.197", "referenceType": "federal_regulation", "url": "https://www.ecfr.gov/current/title-49/section-192.197", "incorporatedEdition": "1990-10-01" }, { "citation": "HRS 269-6", "referenceType": "state_statute", "url": "https://data.capitol.hawaii.gov/hrscurrent/Vol05_Ch0261-0319/HRS0269/HRS_0269-0006.htm" } ], "caveats": { "exactScope": "Complete substantive text of the Hawaii Public Utilities Commission publication of HAR Chapter 6-77: 196 non-reserved numbered sections and Appendices A through D. Four expressly reserved section slots are inventory-only. The PUC's April 2026 page links a 160-page signed scan; an official 178-page text-layer copy from Budget and Finance is used as the higher-quality transcription aid. The publication is an April 15, 1994 adoption, filed August 24 and effective September 3, 1994, based on the October 1, 1990 federal text; it is not a current restatement of federal pipeline standards.", "applicability": "Hawaii is not represented as certified, as an agreement state, or as an interstate agent under the PHMSA federal-state pipeline safety program. PHMSA states that its Office of Pipeline Safety inspects and enforces federal pipeline safety regulations for interstate and intrastate gas and hazardous-liquid pipelines in Hawaii. Chapter 6-77 may remain relevant as published state utility material, but it must not be used to infer current Hawaii inspection or enforcement authority.", "currentness": "The Hawaii PUC still links Chapter 6-77 on its official rules page, updated April 2026. Hawaii's official 2022 periodic rules-review report separately says Chapter 6-77 is to be repealed, was superseded by statute and a federal takeover letter, and cites 2009 Act 25. Because the PUC page does not mark the chapter repealed, this connector preserves the published text with an explicit superseded/slated-for-repeal warning rather than declaring an unproved completed administrative repeal.", "incorporation": "The chapter repeatedly identifies the October 1, 1990 edition of 49 CFR Parts 191 and 192 and its appendices as the implemented source. That fixed, obsolete baseline is preserved exactly. Current federal text, later amendments, and current editions of incorporated private standards must not be silently substituted when researching what this publication says.", "excludedScope": "This connector excludes HAR Chapter 6-83 one-call damage prevention, utility rates and service standards, statutes as standalone documents, dockets, orders, tariffs, federal text, current federal amendments, and the full text of incorporated private standards. Those materials require separate completeness, currentness, applicability, and rights analysis.", "rights": "Official Hawaii and PHMSA artifacts are retained with attribution and SHA-256 provenance. Public access does not establish unrestricted rights in site presentation, state marks, forms, or incorporated private standards. The connector records citations to private standards but makes no independent rights claim for those works." }, "region": "HI" } ```