2026-19350RuleWallet

FDA Dumps 'Animal Testing' Term for Woke 'Nonclinical' Lingo

Published Date: 9/22/2026

Rule

Summary

The FDA is updating its rules to replace the words “animal” tests with “nonclinical” tests, making room for new, smarter ways to check drug safety without relying only on animal testing. This change affects drug makers and researchers but won’t add new costs or requirements. The rule kicks in on February 4, 2027, and comments are open until December 7, 2026.

Analyzed Economic Effects

2 provisions identified: 2 benefits, 0 costs, 0 mixed.

Terminology Update Lets More Test Types

FDA is replacing references to “animal” and some uses of “preclinical” with the term “nonclinical” and is adding definitions for “nonclinical test” and “nonclinical study.” The change explicitly includes tests done in vitro, in silico, in chemico, organ chips, computer modeling, and animal tests, and may foster use of new approach methodologies (NAMs). The rule is effective February 4, 2027 and the comment period ends December 7, 2026.

No New Testing Costs or Requirements

FDA states this direct final rule adds no new regulatory requirements and is expected to generate no costs for industry. The Agency describes the change as noncontroversial and effective February 4, 2027, with comments accepted through December 7, 2026.

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Key Dates

Published Date
Comments Due
Rule Effective
9/22/2026
12/7/2026
2/4/2027

Department and Agencies

Department
Independent Agency
Agency
Health and Human Services Department
Food and Drug Administration
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