Backers of the bipartisan plan say it would make the public safer by giving the federal government broader authority to test and regulate chemicals. But in return for backing that greater federal authority, the chemical industry has insisted on limits to the power of states to add additional regulations of their own.
The proposal, called the Chemical Safety Improvement Act, was hailed only a few months ago as a breakthrough -- an opportunity to fix a federal chemical regulatory regime that has been broken for decades. Under current law the EPA screens only a small fraction of the tens of thousands of chemicals that exist in the marketplace. States like California have filled the void by imposing their own, tougher regulations.