Chemical plants must now catch and report equipment leaks in real time instead of waiting for inspections

US environmental regulators tightened leak detection rules for chemical manufacturing plants, requiring continuous electronic monitoring of equipment leaks and heat exchangers instead of periodic manual checks. Plants must now report what they find immediately, and regulators can see the data in real time instead of waiting for compliance paperwork.

For decades, chemical plants reported leaks through annual compliance forms — which meant a leak could run for months before anyone outside the plant knew. This rule flips that: a leak is now visible to regulators the moment it happens. The shift from periodic inspection to continuous monitoring means plants can no longer hide small, chronic leaks in the noise of annual reporting cycles. Regulators gain enforcement visibility they didn't have before; plants lose the ability to batch-report problems as if they were isolated incidents.