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.

Emergency

This is not the current EPA website. To navigate to the current EPA website, please go to www.epa.gov. This website is historical material reflecting the EPA website as it existed on January 19, 2025. This website is no longer updated and links to external websites and some internal pages may not work. More information »

    • Environmental Topics
    • Air
    • Bed Bugs
    • Cancer
    • Chemicals, Toxics, and Pesticide
    • Climate Change
    • Emergency Response
    • Environmental Information by Location
    • Environmental Justice
    • Greener Living
    • 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
    • Staff Directory

Breadcrumb

  1. Home
  2. Stationary Sources of Air Pollution

Pesticide Active Ingredient Production Industry: National Emission Standards for Hazardous Air Pollutants (NESHAP)

Pesticide Active Ingredient Production Industry: National Emission Standards for Hazardous Air Pollutants (NESHAP)
Basic Information
Legal Authorities
  • 42 U.S.C. §7401
Federal Register Citations
  • 67 FR 59336
  • 67 FR 38200
  • 67 FR 21579
  • 67 FR 17286
  • 67 FR 13504
  • 66 FR 58396
  • 66 FR 58393
  • 64 FR 33550
  • 62 FR 66049
  • 62 FR 60579
Code of Federal Regulations Citations
  • 40 CFR Part 63 Subpart MMM
Docket Numbers
  • EPA-HQ-OAR-2004-0388

On this page:

  • Rule Summary
  • Rule History
  • Additional Resources

Rule Summary

The intent of these standards is to reduce emissions of hazardous air pollutants (HAP) from existing and new facilities that manufacture organic pesticide active ingredients (PAI) used in herbicides, insecticides, and fungicides.

The major HAP emitted by these facilities include toluene, methanol, methyl chloride, and hydrogen chloride (HCl). All of these pollutants can cause reversible or irreversible toxic effects following exposure.

The rule is estimated to reduce total HAP emissions from existing facilities by 2,500 megagrams per year (Mg/yr) (2,755 tons per year (tons/yr)), a reduction of 65 percent from the baseline emission level. Because many of these pollutants are also volatile organic compounds (VOC), which are precursors to ambient ozone, the rule will aid in the reduction of tropospheric ozone. 

See the regulations below for more details.

Rule History

03/27/2014 - Final Rule

01/09/2012 - Proposed Rule

09/20/2002 - Final Rule

06/03/2002 - Final Rule

05/01/2002 - Withdrawal of Direct Final Rule

04/10/2002 - Direct Final Rule

03/22/2002 - Proposed Rule

11/21/2001 - Direct Final Rule

06/23/1999 - Final Rule

12/17/1997 - Extension of Public Comment Period

11/10/1997 - Proposed Rule

Additional Resources

Summary of Public Comments and Responses document for Final Hazardous Air Pollutant (HAP) Standards for Pesticide Active Ingredient Production Industry

Fact Sheets for Final and Proposed Rule

Overview of the Pesticide Active Ingredient MACT Standard

Stationary Sources of Air Pollution

  • Stationary Sources of Air Pollution Home
  • 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 About Stationary Sources of Air Pollution to ask a question, provide feedback, or report a problem.
Last updated on December 20, 2024
  • Assistance
  • Ayuda
  • Arabic
  • Chinese (simplified)
  • Chinese (traditional)
  • Aide
  • Asistans
  • Korean
  • Assistência
  • Russian
  • Tulong
  • 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

Follow.