January 9, 2025

Upcoming Changes to Stationary Source Regulations

EPA’s Fall 2024 regulatory agenda has been released. The following table summarizes EPA’s Office of Air and Radiation’s (OAR) plans for proposing and finalizing new regulations. Among other things, OAR is responsible for crafting regulations under the NSPS, NESHAP (including air toxics), and NSR programs. The table is not all-inclusive of every OAR regulatory action. Instead, it includes those actions McCoy and Associates believes to be of broad interest to the regulated community.

Fall 2024 OAR Regulatory Agenda—NSPS

Rule description

Action

Schedule date

Oil and natural gas: Reconsideration of standards, Subparts OOOOb and OOOOc

NPRM

12/24

Stationary combustion turbines: Review, Subpart KKKK

NPRM

12/24

Large municipal waste combustors: Review, Subparts Eb and Cb

Final Rule

12/24

Consolidation of provisions from four different rules regulating certain air curtain incinerators

NPRM

1/25

Existing fossil fuel-fired combustion turbine EGUs: Emission guidelines for GHG emissions, Subpart UUUUb

NPRM

2/25

Other solid waste incinerators: Review, Subparts EEEE and FFFF

Final Rule

6/25

Municipal solid waste landfills: Reconsideration of standards, Subparts Cf and XXX

NPRM

11/25

Glass manufacturing: Review, Subpart CC1

NPRM

9/26

Residential wood heaters, hydronic heaters, and forced-air furnaces: Amendments, Subparts AAA and QQQQ1

NPRM

TBD

Fall 2024 OAR Regulatory Agenda—NESHAP and Air Toxics

Rule description

Action

Schedule date

Chemical manufacturing area source: Review, Subpart VVVVVV

NPRM

1/25

Polyether polyols production: Review, Subpart PPP

NPRM

1/25

Dry cleaning facilities: Review, Subpart M

Final Rule

2/25

Regulatory requirements for new HAP additions to Part 63

Final Rule

3/25

Portland cement manufacturing: Review of idle kiln provision, Subpart LLL

NPRM

3/25

Hazardous waste combustors: Exemption removal, Subpart EEE

Final Rule

5/25

Stationary combustion turbines: Reconsideration of the 2020 residual risk and technology review, Subpart YYYY

NPRM

5/25

Marine tank vessel loading operations: Review, Subpart Y

NPRM

6/25

Plywood and composite wood products: Review amendments, Subpart DDDD

Supplemental NPRM

7/25

Hospital ethylene oxide sterilizers: Review, Subpart WWWWW

NPRM

9/25

Polyvinyl chloride and copolymers production: Reconsideration of emission limits, Subparts DDDDDD and HHHHHHH

Final Rule

9/25

Secondary lead smelting, Reconsideration of petition, Subpart X

NPRM

11/25

Primary magnesium refining: Review, Subpart TTTTT

Supplemental NPRM

11/25

Hazardous waste combustors: Review, Subpart EEE

NPRM

12/25

Chromium electroplating: Review, Subpart N1

NPRM

3/26

Halogenated solvent cleaning: Review, Subpart T1

NPRM

5/26

Glass manufacturing: New standard for major sources1

NPRM

9/26

Stand-alone warehouses handling EtO sterilized medical devices: New standard1

NPRM

8/27

Fall 2024 OAR Regulatory Agenda—NSR and Other Rules

Rule description

Action

Schedule date

Review of secondary NAAQS for NOX, SO2, and PM

Final Rule

1/25

PSD and NNSR: Project emissions accounting revisions

Final Rule

11/25

Review of NAAQS for Pb1

NPRM

TBD

Review of primary NAAQS for NOX1

NPRM

TBD

PSD and NNSR: Reconsideration of fugitive emissions rule1

Final Rule

TBD

ANPRM = advanced notice of proposed rulemaking; NPRM = notice of proposed rulemaking; TBD = to be determined

1Long-term actions: Items under development but for which the agency does not expect to have a regulatory action within 12 months after publication in the regulatory agenda.

Source: EPA’s Fall 2024 regulatory agenda; EPA’s Fall 2024 long-term actions

 


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This document addresses issues of a general nature related to the federal environmental regulations. Persons evaluating specific circumstances dealing with the environmental regulations should review state and local laws and regulations, which may be more stringent than federal requirements. In addition, the assistance of a qualified professional should be enlisted to address any site-specific circumstances.