Washington § 80.86.050 Emissions baseline and projected cumulative emissions—Emissions reduction period.

Washington Statutes

§ 80.86.050 — Emissions baseline and projected cumulative emissions—Emissions reduction period.

Washington § 80.86.050

Title 80PUBLIC UTILITIES

Ch. 80.86WASHINGTON DECARBONIZATION ACT FOR LARGE COMBINATION UTILITIES

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Bluebook

Wash. Rev. Code § 80.86.050 (2026).

Text

(1)Large combination utilities must include the following in calculating the emissions baseline and projected cumulative emissions for an emissions reduction period, consistent with reporting of greenhouse gas emissions pursuant to the Washington clean air act, chapter 70A.15 RCW:

(a)Methane leaked from the transportation and delivery of gas from the gas distribution and service pipelines from the city gate to customer end use;

(b)Greenhouse gas emissions resulting from the combustion of gas by customers not otherwise subject to federal greenhouse gas emissions reporting and excluding all transport customers; and

(c)Emissions of methane resulting from leakage from delivery of gas to other gas companies.

(2)In calculating an emissions reduction target, a large combination utility m

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(1) Large combination utilities must include the following in calculating the emissions baseline and projected cumulative emissions for an emissions reduction period, consistent with reporting of greenhouse gas emissions pursuant to the Washington clean air act, chapter 70A.15 RCW:

(a) Methane leaked from the transportation and delivery of gas from the gas distribution and service pipelines from the city gate to customer end use;

(b) Greenhouse gas emissions resulting from the combustion of gas by customers not otherwise subject to federal greenhouse gas emissions reporting and excluding all transport customers; and

(c) Emissions of methane resulting from leakage from delivery of gas to other gas companies.

(2) In calculating an emissions reduction target, a large combination utility must show its emissions baseline and projected cumulative greenhouse gas emissions for the applicable emissions reduction period separately and must show that the total emissions reductions are projected to make progress toward the achievement of the emissions reduction targets identified in the applicable integrated system plan. The final calculation must be presented on a carbon dioxide equivalent basis.

(3) All emissions are metric tons of carbon dioxide equivalent as reported to the federal environmental protection agency pursuant to 40 C.F.R. 98, either subpart W (methane) or subpart NN (carbon dioxide), or successor reporting requirements.

Effective date — 2024 c 351: See note following RCW 80.86.010 .