Skip to main content
U.S. flag

An official website of the United States government

Here’s how you know

Dot gov

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

HTTPS

Secure .gov websites use HTTPS
A lock (LockA locked padlock) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

    • Environmental Topics
    • Air
    • Bed Bugs
    • Cancer
    • Chemicals, Toxics, and Pesticide
    • Emergency Response
    • Environmental Information by Location
    • Health
    • Land, Waste, and Cleanup
    • Lead
    • Mold
    • Radon
    • Research
    • Science Topics
    • Water Topics
    • A-Z Topic Index
    • Laws & Regulations
    • By Business Sector
    • By Topic
    • Compliance
    • Enforcement
    • Laws and Executive Orders
    • Regulations
    • Report a Violation
    • Environmental Violations
    • Fraud, Waste or Abuse
    • About EPA
    • Our Mission and What We Do
    • Headquarters Offices
    • Regional Offices
    • Labs and Research Centers
    • Planning, Budget, and Results
    • Organization Chart
    • EPA History

Breadcrumb

  1. Home
  2. Stationary Sources of Air Pollution

Good Neighbor Plan for the 2015 Ozone NAAQS - Compliance for Industrial Sources

On this page:
  • Overview of the Rule
  • Affected Units & Emissions Limits
  • Compliance Requirements
  • Compliance Resources and Documents
    • Submitting forms to CEDRI
    • Initial Notifications
    • Iron and Steel Workplan
    • Glass Startup/Shutdown Notification
    • Compliance Extension Requests
    • Case-by-Case Emissions Limit Requests
    • Pipeline Transportation of Natural Gas Facility-Wide Averaging Plan
    • Alternative Monitoring Plans for Boilers

Overview of the Rule 

On August 5, EPA released a memorandum describing how the Agency plans to comply with the Supreme Court's June 27, 2024 order granting applications for a stay of the 2023 final Good Neighbor Plan, pending judicial review. 

On March 15, 2023, the U.S. Environmental Protection Agency (EPA) issued its final Good Neighbor Plan, which ensures that 23 states fully resolve their Clean Air Act obligations under the 2015 Ozone National Ambient Air Quality Standards (NAAQS).

The Good Neighbor Plan includes a combination approach to secure significant reductions in ozone-forming emissions of nitrogen oxides (NOx) from power plants and industrial facilities. Fossil fuel-fired power plants in 22 states are included in a NOx Allowance Trading Program and emissions sources in nine large industries across 20 states are subject to NOx emissions control requirements.

The content of this page is intended to provide additional information and resources for the nine industries subject to the NOx emissions standards in the Good Neighbor Plan.

Affected Units & Emissions Limits

Industry Emissions Unit Type NOx Emissions Limits Applicability Criteria

Pipeline Transportation of Natural Gas

(NAICS Code: 4862)

Natural gas-fired Reciprocating Internal Combustion Engines

Four Stroke Rich Burn: 1.0 g/hp-hr

Four Stroke Lean Burn: 1.5 g/hp-hr

Two Stroke Lean Burn: 3.0 g/hp-hr

Nameplate rating of ≥1000 braking horsepower (bhp) and is not an emergency engine

Cement and Concrete Product Manufacturing

(NAICS Code: 3273)

Kilns

Long Wet: 4.0 lb/ton

Long Dry: 3.0 lb/ton

Preheater: 3.8 lb/ton

Precalciner: 2.3 lb/ton

Preheater/Precalciner: 2.8 lb/ton

Directly emits or has the potential to emit 100 tons per year (tpy) or more of NOx on or after August 4, 2023

Iron and Steel Mills and Ferroalloy Manufacturing

(NAICS Code: 3311)

Reheat Furnaces

Test and set limit based on installation of Low-NOx Burners or equivalent control technology to achieve at least 40% reduction from baseline levels

Directly emits or has the potential to emit 100 tpy or more of NOx on or after August 4, 2023, and does not have low-NOx burners installed as of this date.

Glass and Glass Product Manufacturing

(NAICS Code: 3272)

Furnaces

Container Glass Furnace: 4.0 lb/ton

Pressed/Blown Glass Furnace: 4.0 lb/ton

Fiberglass Furnace: 4.0 lb/ton

Flat Glass Furnace: 7 lb/ton

Directly emits or has the potential to emit 100 tpy or more of NOx on or after August 4, 2023

Iron and Steel Mills and Ferroalloy Manufacturing

(NAICS Code: 3311)

Metal Ore Mining

(NAICS Code: 2122)

Basic Chemical Manufacturing

(NAICS Code: 3251)

Petroleum and Coal Products Manufacturing

NAICS Code: 3241)

Pulp, Paper, and Paperboard Mills

(NAICS Code: 3221)

Boilers

Coal: 0.20 lb/MMBtu

Residual Oil: 0.20 lb/MMBtu

Distillate Oil: 0.12 lb/MMBtu

Natural Gas: 0.08 lb/MMBtu

Design capacity of ≥100 MMBtu/hr that receives 90% or more of its heat input from coal, residual oil, distillate oil, natural gas, or combinations of these fuels in the previous

ozone season; and is not a low-use boiler under 40 CFR 52.45(b)(2).

Solid Waste Combustors and Incinerators

(NAICS Code: 562213)

Combustors or Incinerators

110 ppmvd on a 24-hour averaging period

105 ppmvd on a 30-day averaging period

Design capacity ≥ 250 tons of waste/day

Compliance Requirements

Submission Type Affected Industries Required or Optional Submission Deadline

Initial Notification

Cement and Concrete Product Manufacturing;

Iron and Steel Mills and Ferroalloy Manufacturing;

Glass and Glass Product Manufacturing

Required

December 4, 2023

Work Plan

Iron and Steel Mills and Ferroalloy Manufacturing

Required

August 5, 2024

Startup and Shutdown Notification

Glass and Glass Product Manufacturing

Required

30 days before anticipated date of Startup and Shutdown

Compliance Extension Request

All

Optional

180 days prior to applicable compliance date; Initial Request: November 3, 2025

Second Request: November 2, 2026

Case-by-Case Emissions Limit Request

All

Optional

August 5, 2024

Facility-Wide Averaging Plan Request

Pipeline Transportation of Natural Gas

Optional

October 1, 2025, and every October thereafter

Alternative Monitoring Plan Request

Boilers in the Iron and Steel Mills and Ferroalloy Manufacturing;

Metal Ore Mining;

Basic Chemical Manufacturing;

Petroleum and Coal Products Manufacturing;

Pulp, Paper, and Paperboard Mills Industries

Optional

N/A

Compliance Resources and Documents

Submitting Forms to CEDRI

The Compliance and Emissions Data Reporting Interface (CEDRI) is a web-based application for the electronic reporting of various reports required in 40 CFR parts 52, 60, 62 and 63. The regulated community is now required to log in to CEDRI and submit the above compliance requirements and flexibilities using the CEDRI.

Resources for navigating CEDRI are provided at the links below.

  • User’s Guide on the CEDRI application and registration (PDF)
  • CEDRI What Will I Need to Get Started?
    • CEDRI How to Register - YouTube
  • CEDRI Job Aides and Frequent Questions
  • Step-by-Step Instructions on Creating a Part 52 Report in CEDRI (pdf) (1.12 MB)

Initial Notifications

Affected units in the Cement and Concrete Product Manufacturing, Iron and Steel Mills and Ferroalloy Manufacturing, and Glass and Glass Product Manufacturing industries are required under 40 CFR 52.42(g), 52.43(h), and 52.44(j), respectively, to submit Initial Notifications via CEDRI by December 4, 2023.

Example Initial Notification for the Cement and Concrete Product Manufacturing Industry (pdf) (163.1 KB)

Example Initial Notification for the Iron and Steel Mills and Ferroalloy Manufacturing Industry (pdf) (146.95 KB)

Example Initial Notification for the Glass and Glass Product Manufacturing Industry (pdf) (146.23 KB)

Iron and Steel Work Plan

Affected units in the Iron and Steel Mills and Ferroalloy Manufacturing industry are required under 40 CFR 52.43(d) to submit a work plan via CEDRI by August 5, 2024.

Each work plan must include a description of the affected unit, identification of the low-NOx burner or alternative low-NOx technology selected, the timeline for construction, installation and operation of the device, baseline emissions testing or preinstallation testing data, and the established emissions limit.

Glass Startup/Shutdown Notifications

Affected units in the Glass and Glass Product Manufacturing Industry are required under 40 CFR 52.44(d) and 52.44(e) to submit startup and shutdown notifications via CEDRI no later than 30 days prior to the anticipated date of each startup and shutdown.

Compliance Extension Requests

Affected units across all nine regulated industries that cannot comply with applicable requirements due to circumstances entirely beyond the owner or operator’s control may request an initial compliance extension to a date certain no later than May 1, 2027. If, after the EPA has granted a request for an initial compliance extension, the affected unit remains unable to comply with the applicable requirements by the extended compliance date, the owner or operator may apply for a second compliance extension to a date certain no later than May 1, 2029.

Each request for a compliance extension must be submitted via CEDRI no later than 180 days prior to the applicable compliance date and must contain a demonstration of necessity consistent with the applicable requirements of 40 CFR 52.40(d).

Compliance Extension Request Procedure (pdf) (222.98 KB)

Case-by-Case Emissions Limit Requests

Affected units across all nine regulated industries that cannot comply with applicable requirements due to technical impossibility or extreme economic hardship may submit a request for approval of a case-by-case emissions limit via CEDRI by August 5, 2024.

Each request for approval of a case-by-case emissions limit must contain a demonstration of technical impossibility or extreme economic hardship consistent with the applicable requirements of 40 CFR 52.40(e).

Case-By-Case Emissions Limit Request (pdf) (212.74 KB)

Pipeline Transportation of Natural Gas Facility-Wide Averaging Plan

Affected units in the Pipeline Transport of Natural Gas Industry may submit a request for approval of a proposed Facility-Wide Averaging Plan, as an alternative means of compliance with the applicable emissions limit, via CEDRI on or before October 1st of the year prior to each emissions averaging year.

Each request for approval of a proposed Facility-Wide Averaging Plan must meet the applicable requirements of 40 CFR 52.41(d) .

Alternative Monitoring Procedures for Boilers

Affected units in the Basic Chemical Manufacturing, Petroleum and Coal Products Manufacturing, the Pulp, Paper, and Paperboard Mills Industries, Metal Ore Mining, and the Iron and Steel and Ferroalloy Manufacturing Industries may submit alternative monitoring procedures via CEDRI and in accordance with the applicable requirements of 40 CFR 52.45(d).

Affected units with a heat capacity greater than or equal to 250 MMBtu/hr may submit a request for approval of an alternative monitoring procedure in conjunction with the results of the initial performance test consistent with the requirements of 40 CFR 52.45(d)(2)(vii).

Affected units with a heat capacity less than 250 MMBtu/hr may submit an alternative monitoring plan in conjunction with an annual test consistent with the requirements of 40 CFR 52.45(d)(3).


If you are having difficulty accessing information on this page, please contact:
Megan Lundequam at lundequam.megan@epa.gov or Gwyndolyn Sofka at sofka.gwyndolyn@epa.gov.

Stationary Sources of Air Pollution

  • Regulations
    • Industry Sector Groups
    • National Emission Standards for Hazardous Air Pollutants (NESHAP)
      • Area Source Standards
      • Risk and Technology Review Status
    • New Source Performance Standards
    • Good Neighbor Plan for the 2015 Ozone National Ambient Air Quality Standards
  • Small Business Assistance Program
Contact Us About Stationary Sources of Air Pollution
Contact Us to ask a question, provide feedback, or report a problem.
Last updated on March 27, 2025
  • Assistance
  • Spanish
  • Arabic
  • Chinese (simplified)
  • Chinese (traditional)
  • French
  • Haitian Creole
  • Korean
  • Portuguese
  • Russian
  • Tagalog
  • Vietnamese
United States Environmental Protection Agency

Discover.

  • Accessibility Statement
  • Budget & Performance
  • Contracting
  • EPA www Web Snapshot
  • Grants
  • No FEAR Act Data
  • Plain Writing
  • Privacy
  • Privacy and Security Notice

Connect.

  • Data
  • Inspector General
  • Jobs
  • Newsroom
  • Regulations.gov
  • Subscribe
  • USA.gov
  • White House

Ask.

  • Contact EPA
  • EPA Disclaimers
  • Hotlines
  • FOIA Requests
  • Frequent Questions
  • Site Feedback

Follow.