Washington's highest court has thrown out a ballot initiative that voters approved just months ago to protect natural gas as an energy option, ruling the measure violated the state constitution's single-subject requirement. The decision hands a win to environmental groups and state regulators who fought the initiative from the moment it passed.
Initiative 2066, approved by Washington voters in November, was designed to ensure that natural gas remained available as an energy choice alongside electric and other alternatives. Supporters framed it as a safeguard against what they saw as a state government push to phase out gas hookups in new construction and force residents onto an all-electric grid. The Washington Supreme Court saw it differently.
The justices ruled that I-2066 violated the single-subject rule embedded in the Washington State Constitution, a provision that requires ballot measures to address only one subject so voters can make informed choices. The court concluded the initiative bundled together too many distinct policy goals under one umbrella, as Courthouse News reported. By combining provisions touching on building codes, utility planning, and energy policy, the measure crossed the constitutional line.
The ruling effectively voids the entire initiative. That means the regulatory landscape reverts to what existed before voters weighed in, leaving state agencies free to continue pursuing energy code updates that critics say would squeeze natural gas out of the market.
I-2066 emerged from growing alarm among builders, gas utilities, and homeowners who believed Washington regulators were moving to eliminate gas connections in new homes and buildings. The state's energy code updates had drawn sharp criticism from the construction industry, which argued the changes would drive up building costs and limit consumer choice.
The Building Industry Association of Washington played a central role in pushing back. BIAW filed a separate lawsuit in Thurston County Superior Court seeking to compel the Washington State Building Code Council to modify state energy codes so they complied with I-2066. That case, however, never reached the merits. A Thurston County judge dismissed the suit on technical grounds, leaving the enforcement question unresolved even before the Supreme Court struck the initiative down entirely.
BIAW has signaled it plans to refile the lawsuit, though the Supreme Court's ruling now removes the legal foundation that case depended on. Without a valid initiative to enforce, the path forward for natural gas advocates narrows considerably.
The single-subject rule is a common feature in state constitutions across the country, but courts apply it with varying degrees of strictness. Washington's Supreme Court has historically taken a firm approach. The rule exists to prevent logrolling, the practice of packaging unrelated provisions together so that voters who support one part feel compelled to swallow the rest.
For I-2066, the court found that the initiative's reach was too broad. It touched on utility planning requirements, building energy code standards, and prohibitions on local governments restricting gas hookups. Each of those topics, the court reasoned, could stand as its own policy question. Bundling them into a single yes-or-no vote denied voters the ability to weigh each issue on its own merits.
The ruling carries implications beyond natural gas. Any future ballot initiative in Washington that attempts to address a complex regulatory problem through multiple policy levers will face the same constitutional gauntlet. Initiative sponsors will need to draft measures with surgical precision or risk the same fate. The tension between voter-approved measures and judicial review has surfaced in other recent state-level legal battles where courts have intervened to block or reshape outcomes that emerged from the political process.
Backers of I-2066 have not taken the ruling quietly. The initiative passed with a clear majority, and supporters argue the court has overridden the will of the electorate on what they see as a procedural technicality. For conservative voters in Washington, the decision fits a pattern: the political system delivers a result, and the legal system undoes it.
The building industry's frustration runs especially deep. Builders have warned for years that aggressive electrification mandates would raise construction costs, limit housing options, and impose a one-size-fits-all energy model on a state with diverse climate zones and housing needs. I-2066 was their answer at the ballot box. Now that answer has been erased.
The legal and political friction over energy policy in Washington mirrors broader national debates about government authority and individual choice. Across the country, courts have become the final battleground for policy disputes that legislatures and voters cannot settle cleanly, a dynamic visible in everything from federal circuit court splits heading toward the Supreme Court to state-level regulatory fights over land use and energy.
With I-2066 voided, Washington's Building Code Council faces no legal obstacle to continuing its energy code revisions. Environmental groups that challenged the initiative will press for stricter electrification standards. Gas utilities and builders will look for new legislative or legal avenues to protect consumer access to natural gas.
One open question is whether the Washington Legislature will step in. Lawmakers could pass a statute accomplishing some or all of what I-2066 attempted, potentially drafted to survive single-subject scrutiny. But the current political makeup of the legislature makes that a steep climb. Democrats hold majorities in both chambers and have generally supported the state's clean-energy transition goals.
BIAW's plan to refile its enforcement lawsuit now faces a fundamental obstacle. The initiative it sought to enforce no longer exists as valid law. Any new litigation would need a different legal hook, whether a new ballot measure, a legislative enactment, or a constitutional challenge to the energy code changes themselves. The case illustrates how organized legal campaigns on both sides of the energy debate are shaping policy outcomes outside the legislative process.
The Washington decision lands at a moment when courts across the country are drawing hard lines around government regulatory authority. Federal courts have grappled with similar questions about how far agencies can go without explicit legislative authorization. At the state level, the question flips: voters explicitly authorized a policy, and the court struck it down on structural grounds.
For conservatives, the case raises a pointed question about democratic accountability. If voters pass a measure and the court voids it, the remedy is either a new initiative drafted to survive judicial review or a constitutional amendment changing the rules. Neither path is quick or easy. The frustration echoes what voters in other states have experienced when ballot measures on issues from individual rights and government mandates to redistricting have collided with judicial interpretation.
Washington's natural gas fight is far from over. But the legal terrain has shifted decisively against the people who thought they settled the question in November.
When voters speak and courts answer with a veto, the real question is who governs. In Washington, for now, it is not the electorate.
