Specific chemicals already under US environmental orders get another layer of review

The US environmental regulators are proposing new rules for certain chemicals. If a company wants to use these chemicals in a new way, it must get approval from the regulators first.

This isn't about new chemicals. It's about chemicals that the US environmental regulators already flagged as potentially risky and put under specific orders. Now, any company wanting to find a new application for these substances must go back to the regulators for another round of review. This means tighter control over the lifecycle of these particular chemicals, even after their initial approval.