Originally posted by the Voice of America. Voice of America content is produced by the Voice of America, a United States federal government-sponsored entity, and is in the public domain. Trump Cancels California's Auto Pollution Rules Steve Baragona The state that made smog famous is losing its half-century-old authority to set air pollution rules. President Donald Trump announced Wednesdayon Twitterthat the Environmental Protection Agency was withdrawing California's authority to issue stricter vehicle efficiency rules than the federal government. The movewas the latest in the administration's efforts to loosen regulations aimed at reducing greenhouse gas emissions. Thirteen states and the District of Columbia follow California's standards. Together, they account for athird of auto sales in the United States. 'Devastating consequences' California has pledged to fight the decision. "It's a move that could have devastating consequences for our kids' health and the air we breathe if California were to roll over," California Gov. Gavin Newsom, aDemocrat, saidin a statement. "But we will fight this latest attempt and defend our cleancar standards." Trump tweeted that the administration was revoking California's air pollution prerogative "in order to produce far less expensive cars for the consumer, while at the same time making the cars substantially SAFER." Opponents saidthe actionwas illegal and unwise. "It slams the brakes on technological advancement and throws a wrench into states' ability to deal with air pollution and confront the growing risk of climate change," Ken Kimmell, president of the Union of Concerned Scientists, said in a statement. "It's yet another way the administration is defying science, the law and democratic norms to enable increased pollution." .