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. Scientific Leadership

Implementation of Vacatur - Strengthening Transparency in Pivotal Science Underlying Significant Regulatory Actions and Influential Scientific Information

On May 24, 2021, EPA Administrator Michael Regan signed a final rule that effectuated the vacatur of the January 6, 2021, “Strengthening Transparency in Pivotal Science Underlying Significant Regulatory Actions and Influential Scientific Information.” The vacatur rule is effective immediately upon publication in the Federal Register. View the implementation of vacatur in the Federal Register. 

  • Implementation of Vacatur: Strengthening Transparency in Pivotal Science Underlying Significant Regulatory Actions and Influential Scientific Information (PDF) 

Background

The January 6, 2021, rule was originally proposed on April 30, 2018. The comment period for the proposed rule was open from April 30, 2018, to August 16, 2018. A public hearing for the proposed rule was held on July 17, 2018, in Washington, DC. ​

On March 3, 2020, EPA announced a supplemental notice of proposed rulemaking (SNPRM). The public comment period was open from March 3, 2020, through May 18, 2020.

On January 6, 2021, the final rule was published in the Federal Register and was effective immediately.

On February 1, 2021, the United States District Court for the District of Montana, in the case of EDF vs. EPA, granted the EPA’s unopposed motion to vacate and remand the final rule.

Related Documents

  • Vacatur and Remand Final Order Case 4:21-cv-00003-BMM (pdf) (290.68 KB, February 1, 2021)
  • Implementation of Vacatur: Strengthening Transparency in Pivotal Science Underlying Significant Regulatory Actions and Influential Scientific Information (pdf) (177.46 KB, May 2021)

Scientific Leadership

  • Risk Assessment Support
  • Human Subjects Research
    • About Human Subjects Research
    • For EPA Grantees Proposing Human Subjects Research
  • Peer Review
  • Public Access
Contact Us about Programs of the Office of the Science Advisor
Contact Us to ask a question, provide feedback, or report a problem.
Last updated on June 12, 2024
  • 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.