Sponsors (22)
The bill reduces permitting burdens, delays, and compliance uncertainty for facility owners and lets regulators focus on projects that clearly raise emissions, but it does so at the cost of narrowing when New Source Review and related controls apply—raising the risk of increased local pollution, constrained state/local authority, and more litigation over emissions impacts.
Owners and operators of industrial facilities and small businesses will avoid many NSPS/NSR/PSD permitting triggers for equipment changes, efficiency, reliability, or safety upgrades, reducing project delays, compliance costs, and regulatory uncertainty.
EPA and state/local permitting authorities can focus enforcement and permitting resources on projects that actually raise maximum hourly or annual emissions, improving regulatory efficiency and targeting of limited enforcement capacity.
Urban and rural communities may experience faster facility upgrades and maintenance that improve reliability of energy and industrial services because non-emissions-increasing changes will avoid lengthy permitting delays.
Nearby residents in urban and rural communities could face increased local air pollution and related health risks because projects that raise total annual or cumulative emissions might escape NSPS/NSR/PSD review if they do not raise the measured maximum hourly emission rate or exceed significance thresholds.
Local communities and energy workers could lose permitting scrutiny during so-called reliability or safety upgrades, creating a loophole that allows emission increases to occur without review.
Major emitting facilities and nearby communities may see weaker long-term emission controls and monitoring because narrowing the definitions of 'construction' and 'modification' reduces the instances where New Source Review and related requirements apply.
Based on analysis of 5 sections of legislative text.
Narrowly redefines when a facility change is a Clean Air Act "modification" by using a 10‑year max hourly emission trigger and exempting efficiency, reliability/safety, and changes without significant annual emission increases.
Changes the Clean Air Act’s tests for when a physical or operational change at an emissions source counts as a “modification” that can trigger New Source Review (NSR) permitting. It replaces some prior tests with an emissions-rate trigger that looks at whether the facility’s maximum achievable hourly emission rate after a change exceeds the maximum hourly rate observed in the prior 10 years, and it explicitly excludes certain projects from being treated as modifications—projects that reduce emissions per unit of production, projects to restore/maintain/improve reliability or safety, and any change that does not cause a significant increase in annual actual emissions. Also updates parallel Clean Air Act provisions so “construction” and state implementation plan language refer to the new definition of “modification,” and includes a non‑expansion clause saying the Act cannot be read to treat as a modification anything that would not have been treated as a modification the day before enactment. The law does not create new funding, directives, or program authorizations; it mainly narrows regulatory triggers and preserves prior interpretation limits.
Introduced January 3, 2025 by H. Morgan Griffith · Last progress January 3, 2025