Section 480-93-005. Definitions.

Section 480-93-007. Application of rules—Responsibility for contractors.

Section 480-93-008. Additional requirements.

Section 480-93-009. Severability.

Section 480-93-012. Computation of time.

Section 480-93-013. Covered tasks.

Section 480-93-015. Odorization of gas.

Section 480-93-017. Filing requirements for design, specification, and construction procedures.

Section 480-93-018. Records.

Section 480-93-020. Proximity considerations.

Section 480-93-040. Location of gas compressor stations on gas pipelines.

Section 480-93-080. Welder and plastic joiner identification and qualification.

Section 480-93-100. Valves.

Section 480-93-110. Corrosion control.

Section 480-93-115. Casing of line pipes.

Section 480-93-124. Pipeline markers.

Section 480-93-130. Multistage pressure regulation.

Section 480-93-140. Service regulators.

Section 480-93-155. Increasing maximum allowable operating pressure.

Section 480-93-160. Reporting requirements of proposed construction.

Section 480-93-170. Tests and reports for gas pipelines.

Section 480-93-175. Moving and lowering metallic gas pipelines.

Section 480-93-178. Protection of plastic pipe.

Section 480-93-180. Plans and procedures.

Section 480-93-185. Gas leak investigation.

Section 480-93-186. Leak evaluation.

Section 480-93-18601. Leak classification and action criteria—Grade—Definition—Priority of leak repair.

Section 480-93-187. Gas leak records.

Section 480-93-188. Gas leak surveys.

Section 480-93-200. Reporting requirements.

Section 480-93-223. Civil penalty for violation of chapter 81.88 RCW and commission gas safety rules.

Section 480-93-230. Exemptions from rules in chapter 480-93 WAC.

Section 480-93-240. Annual pipeline safety fee methodology.

Section 480-93-250. Damage prevention.

Section 480-93-999. Adoption by reference.