Senate Republicans Target EPA Waivers to Curtail California’s Nationwide Emissions Influence

Senate Republicans have filed a package of four resolutions that invoke the Congressional Review Act to repeal EPA waivers granting California broad authority over emissions standards for vehicles, trucks, buses, and small off-road engines. The initiative, spearheaded by Senator Cynthia Lummis of Wyoming together with Senators Eric Schmitt, Jon Husted and Pete Ricketts, targets waivers issued during the Obama, Biden and early Trump administrations, including the 2025 waiver for phasing out gas-powered lawn equipment and the 2022 waiver restoring the Advanced Clean Cars program.

Lawmakers contend that California’s “climate zealots” have turned a narrow smog-relief carve-out into a nationwide regulatory burden that inflates costs and limits consumer choice. Representatives from the National Association of Landscape Professionals and the Golf Course Superintendents Association of America voiced support, emphasizing the need for practical innovation rather than state-driven mandates. Critics warn the effort could undermine California’s historic right under the Clean Air Act to adopt stricter environmental rules. The Senate’s move marks the most extensive congressional attempt to date to detach other states and manufacturers from California’s emissions framework.