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Chapter 480-93 WAC

GAS COMPANIES—SAFETY

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Last update: 7/8/25

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WAC Sections
HTMLPDF480-93-005Definitions.
HTMLPDF480-93-007Application of rules—Responsibility for contractors.
HTMLPDF480-93-008Additional requirements.
HTMLPDF480-93-009Severability.
HTMLPDF480-93-012Computation of time.
HTMLPDF480-93-013Covered tasks.
HTMLPDF480-93-015Odorization of gas.
HTMLPDF480-93-017Filing requirements for design, specification, and construction procedures.
HTMLPDF480-93-018Records.
HTMLPDF480-93-020Proximity considerations.
HTMLPDF480-93-040Location of gas compressor stations on gas pipelines.
HTMLPDF480-93-080Welder and plastic joiner identification and qualification.
HTMLPDF480-93-100Valves.
HTMLPDF480-93-110Corrosion control.
HTMLPDF480-93-115Casing of line pipes.
HTMLPDF480-93-124Pipeline markers.
HTMLPDF480-93-130Multistage pressure regulation.
HTMLPDF480-93-140Service regulators.
HTMLPDF480-93-155Increasing maximum allowable operating pressure.
HTMLPDF480-93-160Reporting requirements of proposed construction.
HTMLPDF480-93-170Tests and reports for gas pipelines.
HTMLPDF480-93-175Moving and lowering metallic gas pipelines.
HTMLPDF480-93-178Protection of plastic pipe.
HTMLPDF480-93-180Plans and procedures.
HTMLPDF480-93-185Gas leak investigation.
HTMLPDF480-93-186Leak evaluation.
HTMLPDF480-93-18601Leak classification and action criteria—Grade—Definition—Priority of leak repair.
HTMLPDF480-93-187Gas leak records.
HTMLPDF480-93-188Gas leak surveys.
HTMLPDF480-93-200Reporting requirements.
HTMLPDF480-93-223Civil penalty for violation of chapter 81.88 RCW and commission gas safety rules.
HTMLPDF480-93-230Exemptions from rules in chapter 480-93 WAC.
HTMLPDF480-93-240Annual pipeline safety fee methodology.
HTMLPDF480-93-250Damage prevention.
HTMLPDF480-93-999Adoption by reference.

Disposition of sections formerly codified in this title

480-93-001Definitions. [Order R-28, § 480-93-001, filed 7/15/71.] Repealed by Order R-98, filed 5/18/77. Later promulgation, see WAC 480-93-005.
480-93-002Application of rules. [Statutory Authority: RCW 80.01.040. WSR 92-16-100 (Order R-375, Docket No. UG-911261), § 480-93-002, filed 8/5/92, effective 9/5/92; Order R-99, § 480-93-002, filed 5/18/77.] Repealed by WSR 05-10-055 (Docket No. UG-011073, General Order No. R-520), filed 5/2/05, effective 6/2/05. Statutory Authority: RCW 80.04.160, 80.28.210, and 80.01.040.
480-93-010Compliance with federal standards. [Statutory Authority: RCW 80.01.040, 80.04.160, 81.04.160, and 34.05.310. WSR 01-20-061 (Docket No. A-010827, General Order No. R-491), § 480-93-010, filed 9/28/01, effective 10/29/01. Statutory Authority: RCW 34.05.310, 34.05.356, 80.01.040, 80.04.160 and 80.04.160 [ 81.04.160]. WSR 99-20-013 (Order R-465, Docket No. A-980247), § 480-93-010, filed 9/24/99, effective 10/25/99. Statutory Authority: RCW 80.01.040. WSR 99-02-037 (Order 457, Docket No. UG-980962), § 480-93-010, filed 12/30/98, effective 1/30/99. Statutory Authority: RCW 80.01.040 and 80.28.210. WSR 96-13-022 (Order R-437, Docket No. UG-951453), § 480-93-010, filed 6/10/96, effective 7/11/96; WSR 95-13-082 (Order R-427, Docket No. UG-950061), § 480-93-010, filed 6/20/95, effective 7/21/95. Statutory Authority: RCW 80.01.040. WSR 93-18-097 (Order R-396, Docket No. UG-930243), § 480-93-010, filed 9/1/93, effective 10/2/93; WSR 92-16-100 (Order R-375, Docket No. UG-911261), § 480-93-010, filed 8/5/92, effective 9/5/92; Order R-28, § 480-93-010, filed 7/15/71; Order R-5, § 480-93-010, filed 6/6/69, effective 10/9/69.] Repealed by WSR 05-10-055 (Docket No. UG-011073, General Order No. R-520), filed 5/2/05, effective 6/2/05. Statutory Authority: RCW 80.04.160, 80.28.210, and 80.01.040.
480-93-030Proscribed areas. [Statutory Authority: RCW 80.01.040. WSR 92-16-100 (Order R-375, Docket No. UG-911261), § 480-93-030, filed 8/5/92, effective 9/5/92; Order R-28, § 480-93-030, filed 7/15/71; Order R-5, § 480-93-030, filed 6/6/69, effective 10/9/69.] Repealed by WSR 05-10-055 (Docket No. UG-011073, General Order No. R-520), filed 5/2/05, effective 6/2/05. Statutory Authority: RCW 80.04.160, 80.28.210, and 80.01.040.
480-93-050Pipelines and mains under or along highways and railroads. [Order R-5, § 480-93-050, filed 6/6/69, effective 10/9/69.] Repealed by Order R-28, filed 7/15/71.
480-93-060Minimum cover and clearances. [Order R-5, § 480-93-060, filed 6/6/69, effective 10/9/69.] Repealed by Order R-28, filed 7/15/71.
480-93-070Welding inspection. [Order R-5, § 480-93-070, filed 6/6/69, effective 10/9/69.] Repealed by Order R-28, filed 7/15/71.
480-93-082Qualification of employees. [Statutory Authority: RCW 80.01.040. WSR 92-16-100 (Order R-375, Docket No. UG-911261), § 480-93-082, filed 8/5/92, effective 9/5/92.] Repealed by WSR 05-10-055 (Docket No. UG-011073, General Order No. R-520), filed 5/2/05, effective 6/2/05. Statutory Authority: RCW 80.04.160, 80.28.210, and 80.01.040.
480-93-090Bends. [Order R-5, § 480-93-090, filed 6/6/69, effective 10/9/69.] Repealed by Order R-28, filed 7/15/71.
480-93-111Noncathodically protected gas facilities. [Statutory Authority: RCW 80.01.040. WSR 92-16-100 (Order R-375, Docket No. UG-911261), § 480-93-111, filed 8/5/92, effective 9/5/92.] Repealed by WSR 05-10-055 (Docket No. UG-011073, General Order No. R-520), filed 5/2/05, effective 6/2/05. Statutory Authority: RCW 80.04.160, 80.28.210, and 80.01.040.
480-93-112Corrosive condition investigation. [Statutory Authority: RCW 80.01.040. WSR 92-16-100 (Order R-375, Docket No. UG-911261), § 480-93-112, filed 8/5/92, effective 9/5/92.] Repealed by WSR 05-10-055 (Docket No. UG-011073, General Order No. R-520), filed 5/2/05, effective 6/2/05. Statutory Authority: RCW 80.04.160, 80.28.210, and 80.01.040.
480-93-120Exposed pipelines. [Statutory Authority: RCW 80.01.040. WSR 92-16-100 (Order R-375, Docket No. UG-911261), § 480-93-120, filed 8/5/92, effective 9/5/92; Order R-28, § 480-93-120, filed 7/15/71; Order R-5, § 480-93-120, filed 6/6/69, effective 10/9/69.] Repealed by WSR 05-10-055 (Docket No. UG-011073, General Order No. R-520), filed 5/2/05, effective 6/2/05. Statutory Authority: RCW 80.04.160, 80.28.210, and 80.01.040.
480-93-150Station maintenance. [Order R-28, § 480-93-150, filed 7/15/71; Order R-5, § 480-93-150, filed 6/6/69, effective 10/9/69.] Repealed by WSR 05-10-055 (Docket No. UG-011073, General Order No. R-520), filed 5/2/05, effective 6/2/05. Statutory Authority: RCW 80.04.160, 80.28.210, and 80.01.040.
480-93-183Pipeline and system pressure reporting. [Statutory Authority: RCW 80.01.040. WSR 92-16-100 (Order R-375, Docket No. UG-911261), § 480-93-183, filed 8/5/92, effective 9/5/92.] Repealed by WSR 05-10-055 (Docket No. UG-011073, General Order No. R-520), filed 5/2/05, effective 6/2/05. Statutory Authority: RCW 80.04.160, 80.28.210, and 80.01.040.
480-93-184Gas leak responsibility. [Order R-101, § 480-93-184, filed 5/18/77.] Repealed by WSR 05-10-055 (Docket No. UG-011073, General Order No. R-520), filed 5/2/05, effective 6/2/05. Statutory Authority: RCW 80.04.160, 80.28.210, and 80.01.040.
480-93-190Being aware of construction work near gas company facilities. [Statutory Authority: RCW 80.01.040. WSR 92-16-100 (Order R-375, Docket No. UG-911261), § 480-93-190, filed 8/5/92, effective 9/5/92; Order R-28, § 480-93-190, filed 7/15/71; Order R-5, § 480-93-190, filed 6/6/69, effective 10/9/69.] Repealed by WSR 05-10-055 (Docket No. UG-011073, General Order No. R-520), filed 5/2/05, effective 6/2/05. Statutory Authority: RCW 80.04.160, 80.28.210, and 80.01.040.
480-93-210Interruptions to service. [Statutory Authority: RCW 80.01.040. WSR 92-16-100 (Order R-375, Docket No. UG-911261), § 480-93-210, filed 8/5/92, effective 9/5/92; Order R-28, § 480-93-210, filed 7/15/71; Order R-5, § 480-93-210, filed 6/6/69, effective 10/9/69.] Repealed by WSR 05-10-055 (Docket No. UG-011073, General Order No. R-520), filed 5/2/05, effective 6/2/05. Statutory Authority: RCW 80.04.160, 80.28.210, and 80.01.040.
480-93-220Rule of precedence. [Statutory Authority: RCW 80.01.040, 80.04.160, 81.04.160, and 34.05.310. WSR 01-20-061 (Docket No. A-010827, General Order No. R-491), § 480-93-220, filed 9/28/01, effective 10/29/01; Order R-28, § 480-93-220, filed 7/15/71.] Repealed by WSR 05-10-055 (Docket No. UG-011073, General Order No. R-520), filed 5/2/05, effective 6/2/05. Statutory Authority: RCW 80.04.160, 80.28.210, and 80.01.040.