US environmental regulators withdraw new rules for pollution during factory startups
What happened
US environmental regulators are withdrawing a rule that would have forced states to tighten limits on pollution during factory startups and shutdowns. This means states will not have to submit new plans to control these emissions, keeping current, looser rules in place.
Why it matters
For years, factories have been allowed to emit more pollution during periods when they start up, shut down, or malfunction. This exemption has been a major loophole in air quality rules. The withdrawal means that states will not have to close this loophole, allowing higher emissions to continue during these operational phases.
The signal
Watch for the EPA's next final rule on this issue, which will address public comments but will not allow further public input.