A California lawmaker says she's giving up on her proposal to require that 15 percent of new cars be emission free by 2025.
A spokeswoman for Democratic Assemblywoman Autumn Burke of Los Angeles says the measure ran into steeper opposition than she expected.
The spokeswoman, Allison Ruff, says the opposition came "from a variety of groups including the Western States Petroleum Association," which represents oil companies.
Burke announced her proposal last week, saying California's existing zero-emission-vehicle mandates were too weak to require significant new investments by automakers. AB1108 would have made plug-in hybrid vehicles, which include a gas engine, ineligible to comply with the mandate.
Automakers characterized the legislation as a giveaway to Tesla Motors, the largest seller of electric vehicles last year.