The Western Propane Gas Association (WPGA) filed a lawsuit Friday challenging the California Air Resources Board’s (CARB’s) zero-emission forklift (ZEF) rule due to the alleged costs it would impose, according to court documents. The regulation from CARB, which was issued on June 27, requires dealerships to stop selling most gasoline-powered forklifts by Jan. 1, 2026, and for companies to begin phasing out the non-electric forklifts by Jan. 1, 2028, the documents state. Now, propane gas trade group WPGA has challenged the California rule, claiming CARB failed to account for the immense costs o…