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. Pesticide Science and Assessing Pesticide Risks

Process for Establishing & Implementing Alternative Approaches to Traditional in Vivo Acute Toxicity Studies

EPA’s Office of Pesticide Programs (OPP) has developed a strategic vision for implementing the 2007 NRC report on Toxicity Testing in the 21st Century. This strategic vision has multiple components involving a combination of computational and predictive modeling approaches, in vitro techniques, and limited, targeted in vivo testing, to supplement or replace the existing toxicity tests required in 40 CFR part 158 in support of pesticide registration. 

  • Process for Evaluating & Implementing Alternative Approaches to Traditional in Vivo Acute Toxicity Studies for FIFRA Regulatory Use (pdf) (52.67 KB, February 4, 2016)

Pesticide Science and Assessing Pesticide Risks

  • Risk Assessment Decisions
  • Environmental Risk Assessment
  • Human Health Risk Assessment
Contact Us About Pesticide Science and Assessing Pesticide Risks
Contact Us to ask a question, provide feedback, or report a problem.
Last updated on March 6, 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.