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

Proposed Risk and Technology Review Amendments to Air Toxics Standards for Cyanide Chemical Manufacturing

On January 15, 2021, the U.S. Environmental Protection Agency (EPA) proposed to amend the 2002 National Emission Standards for Hazardous Air Pollutants (NESHAP) for Cyanide Chemicals Manufacturing. EPA is proposing minor amendments to enhance the effectiveness of the rule by improving compliance and implementation.

Following a residual risk and technology review (RTR) conducted under the Clean Air Act (CAA) for the major sources, EPA is proposing several changes to the rule, summarized in the fact sheet below. 

A summary fact sheet for the proposed rule, along with proposed regulation edits, are available below. You can access the proposal and submit comments on the Federal Register website here.

  • Fact Sheet - Proposed Amendments to the National Emission Standards for Hazardous Air Pollutants for Cyanide Chemicals Manufacturing (pdf) (183.77 KB, 01/06/2021)
  • Proposed Regulation Edits for Cyanide Chemicals Manufacturing RTR (pdf) (953.87 KB)

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 7, 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.