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

Clean Air Act Standards and Guidelines for Energy, Engines, and Combustion

The following are the stationary sources of air pollution for the energy, engines and combustion industries, and their corresponding air pollution regulations. To learn more about the regulations and guidelines for each industry, just click on the links below.

National Emission Standards for Hazardous Air Pollutants – NESHAP

New Source Performance Standards – NSPS

Control Techniques Guidelines - CTG

Alternative Control Techniques – ACT

National Volatile Organic Compound Emission Standards – 183(e) VOC Rule

Regulations Regulation/Guideline Type
Energy, Engines, and Combustion Stationary Sources Regulations
Alternative Control Techniques Document: NOx Emissions from Industrial/Commercial/Institutional (ICI) Boilers (pdf)(12.2 MB) ACT
Engine Test Cells/Stands MACT
Beryllium Rocket Motor Firing NESHAP
Industrial, Commercial, and Institutional Boilers and Process Heaters Major Sources NESHAP
Industrial, Commercial, and Institutional Boilers Area Sources NESHAP
Industrial-Commercial-Institutional Steam Generating Units NSPS
Stationary Reciprocating Internal Combustion Engines (RICE) NESHAP
Stationary Compression Ignition Internal Combustion Engines NSPS
Stationary Spark Ignition Internal Combustion Engines NSPS
Stationary Internal Combustion Engines (pdf)(5.9 MB) ACT
Residential Wood Heaters, Wood Stoves, and Outdoor Wood Boilers NSPS
NOx Emissions from Stationary Gas Turbines (pdf)(9.6 MB) ACT
Stationary Combustion Turbines NESHAP
Stationary Gas and Combustion Turbines NSPS

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 January 15, 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.