# Service Lines: Excess Flow Valve Performance Standards **Citation:** 192.381 **Type / status:** regulation / current **Agency:** Arkansas Public Service Commission **Effective:** Not stated **Published:** Not stated § 192.381 Service Lines: Excess Flow Valve Performance Standards (a) Excess flow valves (EFVs) to be used on service lines that operate continuously throughout the year at a pressure not less than 10 p.s.i. (69 kPa) gage must be manufactured and tested by the manufacturer according to an industry sp ## Document text § 192.381 Service Lines: Excess Flow Valve Performance Standards (a) Excess flow valves (EFVs) to be used on service lines that operate continuously throughout the year at a pressure not less than 10 p.s.i. (69 kPa) gage must be manufactured and tested by the manufacturer according to an industry specification, or the manufacturer's specification, to ensure that each valve will: (1) Function properly up to the maximum operating pressure at which the valve is rated; (2) Function properly at all temperatures reasonably expected in the operating environment of the service line; (3) At 10 p.s.i. (69 kPa) gage: (i) Close at, or not more than 50 percent above, the rated closure flow rate specified by the manufacturer; and (ii) Upon closure, reduce gas flow - (A) For an excess flow valve designed to allow pressure to equalize across the valve, to no more than 5 percent of the manufacturer's specified closure flow rate, up to a maximum of 20 cubic feet per hour (0.57 cubic meters per hour); or (B) For an excess flow valve designed to prevent equalization of pressure across the valve, to no more than 0.4 cubic feet per hour (.01 cubic meters per hour); and (4) Not to close when the pressure is less than the manufacturer's minimum specified operating pressure and the flow rate is below the manufacturer's minimum specified closure flow rate. (b) An excess flow valve must meet the applicable requirements of subparts B and D of this part. (c) An operator must mark or otherwise identify the presence of an excess flow valve in the service line. (d) An operator shall locate an excess flow valve as near as practical to the fitting connecting the service line to its source of gas supply. (e) An operator should not install an excess flow valve on a service line where the operator has prior experience with contaminants in the gas stream, where these contaminants could be expected to cause the excess flow valve to malfunction or where the excess flow valve would interfere with the necessary operation and maintenance activities on the service, such as blowing liquids from the line. ## Provenance - Official: Yes - Source: - Source ID: `ar-car-pipeline-safety` - SHA-256: `1a6e8a6989578edf850b9751fd87aef9c60d99a1f10bfa3717ee5692a340420a` - Retrieved: 2026-08-12T08:10:37.612Z - Exported: 2026-08-23T17:04:11.583Z - Document slug: `ar-car-23-500-192-381` ### Source metadata ```json { "jurisdiction": "US-AR", "subject": "intrastate-gas", "caveats": { "exactScope": "The searchable corpus contains every current numbered section, the code-wide definitions, and every operative appendix in official 23 CAR Part 500, plus direct pipeline rules 15 CAR sections 275-406 and 275-504. Reserved and removed provisions are inventory-only.", "excludedScope": "This is not all Arkansas pipeline law. Standalone statutes, dockets and orders, one-call law, utility rates and service, siting, environmental permits, highway crossings, local law, forms, and incorporated third-party standards are excluded. Other current AOGC gas and transportation rules are inventoried as adjacent production, conservation, storage, or fluid-transport material.", "applicabilityCaveat": "APSC administers certified intrastate gas safety downstream of producer custody transfer. AOGC section 275-406 separately reaches specified producer or producer-affiliated natural-gas systems. AOGC section 275-504 imposes state permitting and operational duties on specified hazardous-liquid pipelines, but PHMSA states that it directly inspects and enforces intrastate hazardous-liquid pipeline safety in Arkansas. Inclusion does not establish applicability to a particular facility.", "incorporationCaveat": "AOGC sections 275-406 and 275-504 use dynamic 'as amended' wording for federal Parts 190, 191, 192, 195, and 199. Part 500 is a state code that reproduces and modifies federal-derived gas provisions. References and relationship records do not substitute a retrieval-date federal text or decide the legal effect of incorporation.", "publicationCaveat": "The Code of Arkansas Rules identifies its online database as the official version, effective as a publication system January 1, 2025, updated weekly, and potentially behind recent agency rulemaking. The official Part 500 page reports Ark. R. 2026-6 effective January 8, 2026; its PDF is headed August 22, 2025 and Docket 25-025-R. Retrieval and site-update dates are publication observations, not inferred legal effective dates for every section.", "rights": "Official Arkansas and federal government artifacts are archived with attribution and SHA-256 provenance. Public access does not settle rights in seals, site presentation, forms, incorporated standards, or third-party material; downstream redistribution requires separate review." }, "rightsReviewRequired": true, "references": [], "codePart": "23 CAR pt. 500", "partEffectiveOn": "2026-01-08", "partEffectiveDateNotImputedToIndividualProvision": true, "federalDerivedStateCode": true, "sourceCollection": "ar-car-23-part-500", "region": "AR" } ```