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
    • 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
    • Guidance
    • 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
    • Newsroom
    • Planning, Budget, and Results
    • Organization Chart
    • EPA History

Hazardous Waste Test Methods / SW-846

  • EPA Requests Information on Test Methods

    On September 14, 2026, EPA published a Request for Information seeking public input on updates to test methods and waste sampling guidance under the Resource Conservation and Recovery Act. 

    Learn more about this Request for Information.

Updates

line of colorful test tubes
  • Update VII to SW-846
  • Update VI to SW-846
  • Validated Methods

Basics

gloved hand holding a test tube of blue liquid with other laboratory equipment in the background.
  • Which Methods to Use
  • Chapters and Methods in the SW-846 Publication
  • Frequent Questions about SW-846 Test Methods

Guidance

two masked scientists in a laboratory looking at a test tube.
  • Leaching Environmental Assessment Framework
  • Waste Sampling Guidance
  • Test Method Development Process
  • Quality Assurance for SW-846
  • SW-846 Guidance Memoranda

Rules and Policies

  • Federal Register Notices Related to SW-846
  • The Modernizing Ignitable Liquids Determinations Rule
  • The Methods Innovation Rule and Method Defined Parameters
  • Streamlined Procedure for Publishing Non-Regulatory Methods

Additional Information

  • Sign up for the SW-846 mailing list
  • Read the Frequent Questions about the SW-846 Compendium and Related Documents
  • Learn more about the Resource Conservation and Recovery Act
Contact Us About Hazardous Waste Test Methods to ask a question, provide feedback, or report a problem.
Last updated on September 23, 2026
  • 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 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.