Sponsors (22)
The bill reduces permitting burdens and short-term costs for energy and industrial operators and eases workload for permitting agencies at the expense of weakening preconstruction review and pollution safeguards, increasing the risk of higher local emissions and regulatory uncertainty for communities and regulators.
Utilities, energy companies, and other industrial operators can make equipment, reliability, or site changes without triggering new NSPS/NSR/PSD permit requirements, reducing permitting delays, paperwork, and near-term compliance costs.
Projects aimed at improving equipment safety or reliability face fewer regulatory delays and lower immediate permitting costs, allowing faster implementation of safety/upgrades.
State and local permitting agencies can continue to apply their existing definitions for when facility changes trigger New Source Review, avoiding retroactive reinterpretation and sudden reclassification of past work.
Nearby residents (including urban and rural communities and people with respiratory vulnerabilities) may face higher pollution exposure because facility upgrades or site changes that increase emissions or hourly capacity can avoid NSPS/PSD/NSR triggers.
Preconstruction protections such as PSD review, Best Available Control Technology (BACT) analyses, visibility assessments, public comment, and mitigation requirements could be reduced or lost, shifting pollution and cleanup costs onto local communities and reducing environmental oversight.
Narrower definitions of 'modification' and 'construction' will weaken pollution controls by allowing emission-increasing changes to bypass NSPS controls, undermining federal air pollution protections.
Based on analysis of 5 sections of legislative text.
Narrows when facility changes trigger NSPS, PSD, and nonattainment preconstruction permits by tightening the ‘‘modification’’ test and limiting permit triggers to discrete physical construction of emissions-unit parts.
Official title: To amend sections 111, 169, and 171 of the Clean Air Act to clarify when a physical change in, or change in the method of operation of, a stationary source constitutes a modification or construction, and for other purposes.
Introduced January 3, 2025 by H. Morgan Griffith · Last progress January 3, 2025
The bill narrows when changes at stationary sources count as ‘‘modifications’’ for Clean Air Act permitting and New Source Performance Standards purposes, and limits when preconstruction permits under Prevention of Significant Deterioration (PSD) and nonattainment-area programs are triggered. It clarifies that a change increases emissions only if the maximum hourly emission rate after the change exceeds the maximum hourly rate achieved in any hour during the prior 10 years, and it excludes certain reliability, safety, and per-unit-emissions-reduction changes from being treated as modifications. The bill also confines PSD and nonattainment-area permit triggers to the physical construction of discrete parts of an emissions unit, lists examples of on-site activities that by themselves are not permit triggers, defines “emissions unit,” and preserves prior Clean Air Act modification interpretations for changes that would not have been modifications immediately before enactment.