California asks for clarity in clean-car rollbacks – and the EPA’s answer might affect your commute

The Trump administration’s new rule stripping California of its power to police tailpipe pollution takes effect this week — but the immediate consequences are so murky the state’s clean air enforcers asked the feds for clarification.
It’s the latest example of the chaos surrounding federal efforts to roll back Obama-era vehicle standards. Announced at the end of September, the rule takes away key weapons in California’s battle against climate change: the a