All recent votes 119th CongressHouse and Senate

S. 331HALT Fentanyl Act

4 recorded actionsWhat the measure does Read on Congress.gov

Sponsor: Bill Cassidy [R-LA]
Cosponsors: 31 · 24 Republicans · 6 Democrats · 1 Independent
Policy area: Crime and Law Enforcement
Committee: Judiciary Committee
Latest action: Jul 16, 2025 · Became Public Law No: 119-26.

IntroducedJan 30, 2025
Passed the SenateMar 14, 2025
Passed the HouseJun 12, 2025
Sent to the PresidentJul 8, 2025
Became lawJul 16, 2025

What the measure doesCRS summary

This act permanently places fentanyl-related substances as a class into schedule I of the Controlled Substances Act. A schedule I controlled substance is a drug, substance, or chemical that has a high potential for abuse; has no currently accepted medical value; and is subject to regulatory controls and administrative, civil, and criminal penalties under the Controlled Substances Act.

Under the act, offenses involving fentanyl-related substances are triggered by the same quantity thresholds and subject to the same penalties as offenses involving fentanyl analogues (e.g., offenses involving 100 grams or more trigger a 10-year mandatory minimum prison term).

Additionally, the act establishes a new, alternative registration process for certain schedule I research.

The act also makes several other changes to registration requirements for conducting research with controlled substances, including

permitting a single registration for related research sites in certain circumstances,
waiving the requirement for a new inspection in certain situations, and
allowing a registered researcher to perform certain manufacturing activities with small quantities of a substance without obtaining a manufacturing registration.

Finally, the act expresses the sense that Congress agrees with the interpretation of the Controlled Substances Act in United States v. McCray, a 2018 case decided by the U.S. District Court for the Western District of New York. In that case, the court held that butyryl fentanyl, a controlled substance, can be considered an analogue of fentanyl even though, under the Controlled Substances Act, the term controlled substance analogue specifically excludes a controlled substance.

Written by the nonpartisan Congressional Research Service, describing S. 331 as public Law on Jul 17, 2025. It is not the text of the measure; a later amendment may have changed what it does.

Roll calls on S. 3314 roll calls on this measure

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Mar 6, 2025Each bar: ✓ Yea from the bottom, ✕ Nay aboveJun 12, 2025

How every member votedSenate roll call 127

Senate Mar 14, 2025 · the primary vote

On Passage of the Bill

S. 331, as amended

Bill Passed

84 Yea 16 Nay

Crossed both parties 15 of 100 voting members broke with their own party: 15 Democrats.

Open the official roll call

How the chamber split

One dot per member. Select a seat or a bar to filter the list.

DemocratsIndependentsRepublicansFilled: YeaRing: NayGrey: not voting or present

By party select a segment to filter

All members100 members

Democratic45 members

Independent2 members

Republican53 members

marks half of the votes cast. A party’s majority is the side most of its voting members took.

Cosponsors31 · 24 Republicans · 6 Democrats · 1 Independent

Signing on is not a vote: a member can cosponsor S. 331 and vote against it. 16 signed when it was filed.

Loading the public record

All recent votes 119th CongressHouse and Senate

S. 331HALT Fentanyl Act

4 recorded actionsWhat the measure does Read on Congress.gov

Sponsor: Bill Cassidy [R-LA]
Cosponsors: 31 · 24 Republicans · 6 Democrats · 1 Independent
Policy area: Crime and Law Enforcement
Committee: Judiciary Committee
Latest action: Jul 16, 2025 · Became Public Law No: 119-26.

IntroducedJan 30, 2025
Passed the SenateMar 14, 2025
Passed the HouseJun 12, 2025
Sent to the PresidentJul 8, 2025
Became lawJul 16, 2025

What the measure doesCRS summary

Additionally, the act establishes a new, alternative registration process for certain schedule I research.

The act also makes several other changes to registration requirements for conducting research with controlled substances, including

permitting a single registration for related research sites in certain circumstances,
waiving the requirement for a new inspection in certain situations, and
allowing a registered researcher to perform certain manufacturing activities with small quantities of a substance without obtaining a manufacturing registration.

Written by the nonpartisan Congressional Research Service, describing S. 331 as public Law on Jul 17, 2025. It is not the text of the measure; a later amendment may have changed what it does.

Roll calls on S. 3314 roll calls on this measure

Choose a roll call

Mar 6, 2025Each bar: ✓ Yea from the bottom, ✕ Nay aboveJun 12, 2025

How every member votedSenate roll call 127

Senate Mar 14, 2025 · the primary vote

On Passage of the Bill

S. 331, as amended

Bill Passed

84 Yea 16 Nay

Crossed both parties 15 of 100 voting members broke with their own party: 15 Democrats.

Open the official roll call

How the chamber split

One dot per member. Select a seat or a bar to filter the list.

DemocratsIndependentsRepublicansFilled: YeaRing: NayGrey: not voting or present

By party select a segment to filter

All members100 members

Democratic45 members

Independent2 members

Republican53 members

marks half of the votes cast. A party’s majority is the side most of its voting members took.

Cosponsors31 · 24 Republicans · 6 Democrats · 1 Independent

Signing on is not a vote: a member can cosponsor S. 331 and vote against it. 16 signed when it was filed.

Who lobbied on S. 33122 organizations

Organizations that named S. 331 in a lobbying disclosure. Only those that cited the bill by number appear, so this is a floor, not a full list.

NATIONAL FRATERNAL ORDER OF POLICEIts PAC: National Fraternal Order of Police PAC

Law Enforcement/Crime/Criminal Justice · Retirement · Taxation/Internal Revenue Code · Firearms/Guns/Ammunition +3 more14 filings · 1st Quarter (Jan 1 - Mar 31) 2026Filing

ASSOCIATION OF AMERICAN MEDICAL COLLEGES

Animals · Immigration · Taxation/Internal Revenue Code · Budget/Appropriations +6 more7 filings · 3rd Quarter (July 1 - Sep 30) 2026Filing

DUE PROCESS INSTITUTE

Civil Rights/Civil Liberties · Constitution · Law Enforcement/Crime/Criminal Justice · Intelligence6 filings · 2nd Quarter (Apr 1 - June 30) 2026Filing

BRAINFUTURESfiled by HOOPER, LUNDY & BOOKMAN, P.C.

Health Issues · Medical/Disease Research/Clinical Labs · Budget/Appropriations · Veterans4 filings · 4th Quarter (Oct 1 - Dec 31) 2025Filing

PEACE OFFICERS RESEARCH ASSOCIATION OF CALIFORNIAfiled by STEPTOE LLP

Law Enforcement/Crime/Criminal Justice · Trucking/Shipping · Labor Issues/Antitrust/Workplace · Tobacco4 filings · 4th Quarter (Oct 1 - Dec 31) 2025Filing

INDIVIOR INC

Health Issues3 filings · 3rd Quarter (July 1 - Sep 30) 2025Filing

LEADERSHIP CONFERENCE ON CIVIL AND HUMAN RIGHTS

Medicare/Medicaid · Taxation/Internal Revenue Code · Housing · Education +13 more3 filings · 2nd Quarter (Apr 1 - June 30) 2025Filing

ACT FOR AMERICA

Government Issues · Immigration · Defense · Homeland Security +1 more2 filings · 4th Quarter (Oct 1 - Dec 31) 2025Filing

COLLEGE ON PROBLEMS OF DRUG DEPENDENCEfiled by VAN SCOYOC ASSOCIATES

Budget/Appropriations · Health Issues2 filings · 2nd Quarter (Apr 1 - June 30) 2025Filing

DRUG POLICY ALLIANCE

Law Enforcement/Crime/Criminal Justice · Civil Rights/Civil Liberties · Health Issues2 filings · 2nd Quarter (Apr 1 - June 30) 2025Filing

65 disclosures name this measure. Retrieved from LDA.gov on 2026-10-25. Senate Office of Public Records cannot vouch for the data or analyses derived from these data after the data have been retrieved from LDA.gov.

Who lobbied on S. 33122 organizations

Organizations that named S. 331 in a lobbying disclosure. Only those that cited the bill by number appear, so this is a floor, not a full list.

NATIONAL FRATERNAL ORDER OF POLICEIts PAC: National Fraternal Order of Police PAC

Law Enforcement/Crime/Criminal Justice · Retirement · Taxation/Internal Revenue Code · Firearms/Guns/Ammunition +3 more14 filings · 1st Quarter (Jan 1 - Mar 31) 2026Filing

ASSOCIATION OF AMERICAN MEDICAL COLLEGES

Animals · Immigration · Taxation/Internal Revenue Code · Budget/Appropriations +6 more7 filings · 3rd Quarter (July 1 - Sep 30) 2026Filing

DUE PROCESS INSTITUTE

Civil Rights/Civil Liberties · Constitution · Law Enforcement/Crime/Criminal Justice · Intelligence6 filings · 2nd Quarter (Apr 1 - June 30) 2026Filing

BRAINFUTURESfiled by HOOPER, LUNDY & BOOKMAN, P.C.

Health Issues · Medical/Disease Research/Clinical Labs · Budget/Appropriations · Veterans4 filings · 4th Quarter (Oct 1 - Dec 31) 2025Filing

PEACE OFFICERS RESEARCH ASSOCIATION OF CALIFORNIAfiled by STEPTOE LLP

Law Enforcement/Crime/Criminal Justice · Trucking/Shipping · Labor Issues/Antitrust/Workplace · Tobacco4 filings · 4th Quarter (Oct 1 - Dec 31) 2025Filing

INDIVIOR INC

Health Issues3 filings · 3rd Quarter (July 1 - Sep 30) 2025Filing

LEADERSHIP CONFERENCE ON CIVIL AND HUMAN RIGHTS

Medicare/Medicaid · Taxation/Internal Revenue Code · Housing · Education +13 more3 filings · 2nd Quarter (Apr 1 - June 30) 2025Filing

ACT FOR AMERICA

Government Issues · Immigration · Defense · Homeland Security +1 more2 filings · 4th Quarter (Oct 1 - Dec 31) 2025Filing

COLLEGE ON PROBLEMS OF DRUG DEPENDENCEfiled by VAN SCOYOC ASSOCIATES

Budget/Appropriations · Health Issues2 filings · 2nd Quarter (Apr 1 - June 30) 2025Filing

DRUG POLICY ALLIANCE

Law Enforcement/Crime/Criminal Justice · Civil Rights/Civil Liberties · Health Issues2 filings · 2nd Quarter (Apr 1 - June 30) 2025Filing