S. 355 (119th)Bill Overview

FDA Modernization Act 3.0

Health|Administrative law and regulatory proceduresDepartment of Health and Human Services
Cosponsors
Support
Democratic
Introduced
Feb 3, 2025
Discussions
Bill Text
Current stageCommittee

Read twice and referred to the Committee on Health, Education, Labor, and Pensions.

Introduced
Committee
Floor
President
Law
Congressional Activities
01 · The brief
Plain-English summaryWhat this bill actually does

Requires the HHS Secretary, via the FDA Commissioner, to publish an interim final rule within one year amending specified 21 CFR sections to replace generic references to tests/data with references to “nonclinical tests” and to add a definition of “nonclinical test” to certain regulatory provisions. The interim final rule is made immediately effective without the agency needing to demonstrate good cause for bypassing the usual notice-and-comment delay.

Why people may split

Process: bypassing notice-and-comment versus need for speed

Watch point

Relative to its intended legislative type, this bill is a targeted administrative directive mandating FDA to promulgate regulatory changes implementing a prior statutory amendment.

Requires the HHS Secretary, via the FDA Commissioner, to publish an interim final rule within one year amending specified 21 CFR sections to replace generic references to tests/data with references to “nonclinical tests” and to add a definition of “nonclinical test” to certain regulatory provisions.

The interim final rule is made immediately effective without the agency needing to demonstrate good cause for bypassing the usual notice-and-comment delay.

Also makes a technical renumbering of subsection (z) to subsection (aa) in FDA statute section 505.

Passage75/100

Content is narrow, administrative, and low-cost, making enactment likely absent procedural objections or stakeholder litigation over rulemaking process.

CredibilityPartially aligned

Relative to its intended legislative type, this bill is a targeted administrative directive mandating FDA to promulgate regulatory changes implementing a prior statutory amendment. It identifies responsible actors, a deadline, and specific regulatory provisions to amend, and it includes a technical statutory renumbering.

Contention50/100

Process: bypassing notice-and-comment versus need for speed

02 · What it does

Who stands to gain, and who may push back.

Likely benefits vs burdens50% / 50%
Likely helpedLikely burdened

These are examples from the analysis, not a ranked list of the most-affected groups.

Likely helped
  • Potential benefitClarifies regulatory language across multiple CFR provisions, improving consistency for sponsors and reviewers.
  • Potential benefitEncourages adoption of non-animal and alternative testing approaches by explicitly recognizing nonclinical tests.
  • Potential benefitMay lower some development costs and timelines if alternative methods are accepted in place of animal tests.
Likely burdened
  • Potential burdenRequires immediate effectiveness of the interim rule, limiting initial public notice-and-comment opportunity.
  • Potential burdenMay risk safety if newly accepted nonclinical methods lack sufficient validation for specific regulatory decisions.
  • Potential burdenImposes implementation and administrative costs on FDA and regulated entities to update procedures and submissions.
03 · Why people split

Why the argument around this bill splits.

Process: bypassing notice-and-comment versus need for speed
Progressive85%

Generally supportive of updating regulations to recognize validated nonclinical methods and reduce animal testing where appropriate.

Concerned about the expedited interim final rule process and will want safeguards ensuring scientific validation and public input.

Leans supportive
Centrist60%

Views the bill as a reasonable regulatory update to align CFR with statutory changes, but worries about process and implementation details.

Will favor measures ensuring scientific validation, transparency, and predictable regulatory outcomes.

Split reaction
Conservative45%

Mixed to skeptical: supports regulatory modernization and reduced burdens on developers, but objects to bypassing standard rulemaking and worries about potential safety or legal uncertainty.

Seeks stronger procedural safeguards and strict validation mandates.

Split reaction
04 · Can it pass?

The path through Congress.

Introduced

Reached or meaningfully advanced

Committee

Reached or meaningfully advanced

Floor

Still ahead

President

Still ahead

Law

Still ahead

Passage likelihood75/100

Content is narrow, administrative, and low-cost, making enactment likely absent procedural objections or stakeholder litigation over rulemaking process.

Scope and complexity
24%
Scopenarrow
52%
Complexitymedium
Why this could stall
  • Stakeholder reactions from industry and animal-testing interests
  • Potential procedural holds or objections in committee or floor
05 · Recent votes

Recent votes on the bill.

No vote history yet

The bill has not accumulated any surfaced votes yet.

06 · Go deeper

Go deeper than the headline read.

Included on this page

Process: bypassing notice-and-comment versus need for speed

Content is narrow, administrative, and low-cost, making enactment likely absent procedural objections or stakeholder litigation over rulema…

Unlocked analysis

Relative to its intended legislative type, this bill is a targeted administrative directive mandating FDA to promulgate regulatory changes implementing a prior statutory amendment. It identifies responsible actors, a de…

Go beyond the headline summary with full stakeholder mapping, legislative design analysis, passage barriers, and lens-by-lens tradeoff breakdowns.

Perspective breakdownsPassage barriersLegislative design reviewStakeholder impact map
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