Lead agency use of nonproject environmental impact statement for electrical transmission facility.
RCW 43.21C.408
in effect(1) A lead agency conducting a project-level environmental review under this chapter of an electrical transmission facility with a nominal voltage of 230kV or greater must consider a nonproject environmental impact statement completed pursuant to RCW 43.21C.405 in order to identify and mitigate project-level probable significant adverse environmental impacts. (2)(a) Project-level environmental review conducted pursuant to this chapter of an electrical transmission facility with a nominal voltage of 230kV or greater must begin with the review of the applicable nonproject environmental impact statement completed pursuant to RCW 43.21C.405 . The review must address any probable significant adverse environmental impacts associated with the proposal that were not analyzed in the nonproject environmental impact statements pursuant to RCW 43.21C.405 . The review must identify any mitigation measures specific to the project for probable significant adverse environmental impacts. (b) Lead agencies reviewing site-specific project proposals for electrical transmission facilities with a nominal voltage of 230kV or greater shall use the nonproject review described in RCW 43.21C.405 through one of the following methods and in accordance with WAC 197-11-600, as it existed as of January 1, 2023: (i) Use of the nonproject review unchanged, in accordance with RCW 43.21C.034 , if the project does not cause probable significant adverse environmental impact not identified in the nonproject review; (ii) Preparation of an addendum; (iii) Incorporation by reference; or (iv) Preparation of a supplemental environmental impact statement. (3) Proposals for electrical transmission facilities with a nominal voltage of 230kV or greater following the recommendations developed in the nonproject environmental review completed pursuant to RCW 43.21C.405 are considered to have mitigated the probable significant adverse project-specific environmental impacts under this chapter for which recommendations were specifically developed unless the project-specific environmental review identifies project-level probable significant adverse environmental impacts not addressed in the nonproject environmental review.
(1) A lead agency conducting a project-level environmental review under this chapter of an electrical transmission facility with a nominal voltage of 230kV or greater must consider a nonproject environmental impact statement completed pursuant to RCW 43.21C.405 in order to identify and mitigate project-level probable significant adverse environmental impacts.
(2)(a) Project-level environmental review conducted pursuant to this chapter of an electrical transmission facility with a nominal voltage of 230kV or greater must begin with the review of the applicable nonproject environmental impact statement completed pursuant to RCW 43.21C.405 . The review must address any probable significant adverse environmental impacts associated with the proposal that were not analyzed in the nonproject environmental impact statements pursuant to RCW 43.21C.405 . The review must identify any mitigation measures specific to the project for probable significant adverse environmental impacts.
(b) Lead agencies reviewing site-specific project proposals for electrical transmission facilities with a nominal voltage of 230kV or greater shall use the nonproject review described in RCW 43.21C.405 through one of the following methods and in accordance with WAC 197-11-600, as it existed as of January 1, 2023:
(i) Use of the nonproject review unchanged, in accordance with RCW 43.21C.034 , if the project does not cause probable significant adverse environmental impact not identified in the nonproject review;
(ii) Preparation of an addendum;
(iii) Incorporation by reference; or
(iv) Preparation of a supplemental environmental impact statement.
(3) Proposals for electrical transmission facilities with a nominal voltage of 230kV or greater following the recommendations developed in the nonproject environmental review completed pursuant to RCW 43.21C.405 are considered to have mitigated the probable significant adverse project-specific environmental impacts under this chapter for which recommendations were specifically developed unless the project-specific environmental review identifies project-level probable significant adverse environmental impacts not addressed in the nonproject environmental review.
Source: WA Statutes (Official Site)URL: https://app.leg.wa.gov/RCW/default.aspx?cite=43.21C&full=trueFetched: 6/29/2026