Two senior California officials, environmental lobbyists and "Seinfeld" television star Julia Louis-Dreyfus, proposed on June 12 a law that would bar most US state agencies from buying sport utility vehicles, Reuters reported.The bill, spearheaded by senate president pro tem John Burton and state treasurer Phil Angelides, would exempt state police and emergency services but force other agencies to justify an SUV purchase because of concerns over safety, cost and the environment, the news agency added."We're going to drive the state to a new policy," Angelides told reporters in San Francisco, noting that California would save money with smaller cars.According to Reuters, California's car fleet numbers about 73,000. An estimated 7.5 percent to 10 percent of state vehicles are SUVs, which account for up to 25 percent of total US vehicle sales.Reuters said the bill, expected to face a tough fight in the state's legislature, was another blow to the image of SUVs, which critics have seized on as a symbol of environmental excess.Louis-Dreyfus, who turned up at the press conference to show support for the measure, reportedly said most state agencies do not need large vehicles, according to Reuters.Laurie David, a trustee of the Natural Resources Defense Council environmental group, noted the proposed law would apply to the state legislature, Reuters said.Many California lawmakers, including some Democrats who last year approved tough standards designed to cut greenhouse gas emissions, have come under fire for driving taxpayer-provided, fuel-inefficient SUVs, the news agency noted.A Sierra Club spokesman at the press conference said the environmental group this weekend would run newspaper advertisements criticizing Ford, maker of the Explorer, reported Reuters."Nearly a century ago, Ford's Model T got 25 miles to the gallon," a copy of the ad provided to Reuters says. "Today, Ford's cars and trucks average 22.6 miles per gallon, and the Explorer gets just 16 miles per gallon. That's not progress."Speaking at a Detroit area assembly plant, Ford chairman and chief executive Bill Ford Jr. reportedly said that "some people would rather garner headlines than to work with us to achieve results," Reuters added.