WASHINGTON SUPREME COURT · SEPTEMBER 17, 2026
Climate Sols. v. State
Constitutionality of a law Legislative power & process Ballot initiative or referendum- Docket
- No. 104,240-0
- Decided
- September 17, 2026
- Cited by later opinions
- 0
- Status
- Published
Why this case is listed
Constitutionality of a law
The court considers whether a statute or ordinance is constitutional.
…distinct subjects are not severable, I-2066 is unconstitutional in its entirety.…
Legislative power & process
Single-subject and title rules, separation of powers, or veto power.
…I-2066 violates the single- subject requirement contained in article II, section 19. Because the provisions…
Ballot initiative or referendum
The case involves a statewide initiative or referendum.
…Washington, et al., No. 104240-0 Initiative Measure No. 2066 concerns regulating energy services…
Legislation discussed
- HB 1589 (2023–24) Clean energy
- HB 2131 (2023–24) Thermal energy networks
- SB 5910 (2021–22) Hydrogen
Other references found in the text
These could not be tied to one specific bill (bill numbers repeat each session, and initiatives to the people are not bills).
Initiative 2066
Initiative 722
Scanned text source: official opinion PDF.