United States 119th Congress Status: In Committee Bipartisan · 2 D · 1 R cosponsors

S 4172 — AFTER Act of 2026

Last action — Read twice and referred to the Committee on Agriculture, Nutrition, and Forestry. (Sponsor introductory remarks on measure: CR S1581-1582)

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  1. ✓
    Introduced
  2. 2
    In Committee
  3. 3
    Passed Senate
  4. 4
    Passed House
  5. 5
    To Executive
  6. 6
    Enacted

This bill is in committee in the Senate. Introduced March 24, 2026. It must pass committee before a floor vote.

Next likely step: a committee vote, then a floor vote in the Senate.

Prognosis

Advancing 36% · moderate confidence

Where this bill stands today.

Odds of enactment

Low

How often bills like it became law.

  • In Committee

    Current position in the legislative process.

  • 3 sponsors

    1 primary, 2 co-sponsors signed on.

  • Bipartisan support

    Sponsored across 2 parties (2 D · 1 R) — cross-party backing.

Prognosis reads this bill's own signals — stage, sponsorship breadth, committee status, recorded votes and cross-state momentum. Odds come from a model trained on which bills have become law.

In plain language

The bill allows retirement of animals used in federal research.

This bill seeks to amend the Animal Welfare Act to enable the retirement of certain animals from federal research facilities. It outlines standards for placing these animals in rescue organizations or sanctuaries once they are no longer needed for research.

Bill Text

How this bill changes current law

2 changes Share ↗

Compared against current U.S. Code AI-generated reading aid — verify against the official bill.

This bill amends the Animal Welfare Act to establish new requirements for the retirement of certain animals used in federal research.

  • 7 U.S.C. 2144

    Any department, agency, or instrumentality of the United States having laboratory animal facilities shall comply with the standards and other requirements promulgated by the Secretary for a research facility under sections [1] 2143(a), (f), (g), and (h) of this title. Any department, agency, or instrumentality of the United States exhibiting animals shall comply with the standards promulgated by the Secretary under sections [1] 2143(a), (f), (g), and (h) of this title. → SEC. 14. STANDARDS FOR FEDERAL FACILITIES. (a) Definitions.--In this section: (1) Animal rescue organization.--The term `animal rescue organization' means a nonprofit organization the purpose of which is to rescue covered animals and find permanent adoptive homes for those animals. (2) Animal sanctuary.--The term `animal sanctuary' means a nonprofit organization that-- (A) is registered with the Secretary; (B) operates a place of refuge in which-- (i) a covered animal is provided care for the lifetime of the animal; and (ii) an unescorted public visitation of that animal is not permitted; (C) does not engage in commercial trade of covered animals; (D) does not breed covered animals; (E) does not permit direct contact between the public and covered animals; (F) does not allow the use of a covered animal for performance or exhibition purposes; and (G) does not conduct or permit research on a covered animal other than noninvasive behavioral research. (3) Animal shelter.--The term `animal shelter' means a facility that-- (A) accepts or seizes covered animals-- (i) to care for the animals; (ii) to place those animals in a permanent adoptive home; or (iii) for purposes of law enforcement; (B) does not-- (i) engage in commercial trade of covered animals; (ii) breed covered animals; (iii) allow the use of a covered animal for performance or exhibition purposes; or (iv) conduct or permit research on a covered animal other than noninvasive behavioral research. (4) Covered animal.-- (A) In general.--The term `covered animal' means an animal that is unwanted, abandoned, or otherwise in need of placement in a home. (B) Exclusions.--The term `covered animal' does not include-- (i) a rat of the genus Rattus; or (ii) a mouse of the genus Mus. (5) Nonprofit organization.--The term `nonprofit organization' means an organization described in section 501(c)(3) of the Internal Revenue Code of 1986 and exempt from taxation under section 501(a) of that Code. (6) Suitable for retirement.--The term `suitable for retirement' means, with respect to an animal, that the animal has been evaluated by a licensed veterinarian and is determined to be mentally and physically healthy. (b) Laboratory Animal Facilities and Exhibitors.--Any department, agency, or instrumentality of the United States that operates laboratory animal facilities or exhibits animals shall comply with the standards and other requirements promulgated by the Secretary under subsections (a), (g), (h), and (i) of section 13. (c) Retirement.--(1) In general.--Not later than 90 days after the date of enactment of the AFTER Act of 2026, any department, agency, or instrumentality of the United States operating a Federal research facility shall, after public notice and comment, promulgate regulations that, with respect to any animal of the facility that is no longer needed for research and determined to be suitable for retirement--

    This change replaces the existing text with new definitions and requirements focused on the retirement of animals used in federal research.

  • 7 U.S.C. 2143

    (1) by redesignating subsections (g) and (h) as subsections (h) and (i), respectively; and (2) by redesignating the second subsection (f) (relating to the certification requirement for the delivery of any animal) as subsection (g).

    This change updates the numbering of subsections within the section.

Action History

  1. Introduced in Senate

  2. Read twice and referred to the Committee on Agriculture, Nutrition, and Forestry. (Sponsor introductory remarks on measure: CR S1581-1582)

Sponsors

Sponsorship breakdown

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1 sponsors · 2 co-sponsors · 544 not signed on

Sponsors (1)

Co-sponsors (2)

Not signed on (544)

544 members have not signed on to this bill.

Show all 544 →

"Not signed on" means a member has not sponsored or co-sponsored this bill — it does not imply opposition. Members flagged Voted No have a recorded No vote on this bill.

Whip count is in markup. Polling the chamber and every recorded vote this session. Only the first open is slow. It’s instant for you after this. Calling the roll · Tallying · Engrossing

Subjects

Cross-referencing the record. Reading this bill against every other bill in the corpus by meaning, not keywords. Only the first open is slow. It’s instant for you after this. Matching · Ranking · Engrossing

Frequently asked questions

Who sponsors S 4172?
S 4172 is sponsored by Peters, Gary C. (Democratic), Booker, Cory A. (Democratic), and Collins, Susan M. (Republican).
What is the current status of S 4172?
This bill is in committee in the Senate. Introduced March 24, 2026. It must pass committee before a floor vote.
Where can I track S 4172?
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