S. 331 · 119th Congress
HALT Fentanyl Act
Introduced on Jan 30, 2025 by Bill Cassidy (R-LA). 31 cosponsors, 6 of them from another party. Became Public Law 119-26.
- Stage
- Became law
- Public Law 119-26
- Introduced
- Jan 30, 2025
- Cosponsors
- 31
- 6 from the other party
- Policy area
- Crime and Law Enforcement
Progress
The furthest stage the measure reached. Simple and concurrent resolutions do not go to the President.
- Introduced
- Reported by committee
- Passed one chamber
- Passed both chambers
- Sent to the President
- Became law
Official title
A bill to amend the Controlled Substances Act with respect to the scheduling of fentanyl-related substances, and for other purposes.
Subjects
- Administrative law and regulatory procedures
- Department of Justice
- Drug trafficking and controlled substances
- Licensing and registrations
- Research administration and funding
Summary
By the Congressional Research Service (Public Law, Jul 17, 2025). Public domain.
Halt All Lethal Trafficking of Fentanyl Act or the HALT Fentanyl Act
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.
Sponsor and cosponsors
Cosponsors by party as of the day they signed on. Original cosponsors signed on the day of introduction.
Democrats · 6
- Catherine Cortez MastoD-NVoriginal
- Ruben GallegoD-AZoriginal
- Margaret Wood HassanD-NHoriginal
- Martin HeinrichD-NMoriginal
- Mark KellyD-AZoriginal
- Jeanne ShaheenD-NHoriginal
Independents · 1
- Angus S. King, Jr.I-MEoriginal
Republicans · 24
- Shelley Moore CapitoR-WVoriginal
- John CornynR-TXoriginal
- Steve DainesR-MToriginal
- Chuck GrassleyR-IAoriginal
- John KennedyR-LAoriginal
- Roger MarshallR-KSoriginal
- Mike RoundsR-SDoriginal
- Eric SchmittR-MOoriginal
- Todd YoungR-INoriginal
- Marsha BlackburnR-TNsigned on Feb 3, 2025
- Katie Boyd BrittR-ALsigned on Feb 3, 2025
- Ted CruzR-TXsigned on Feb 3, 2025
- Lindsey GrahamR-SCsigned on Feb 3, 2025
- Josh HawleyR-MOsigned on Feb 3, 2025
- Mike LeeR-UTsigned on Feb 3, 2025
- Thom TillisR-NCsigned on Feb 3, 2025
- Ashley MoodyR-FLsigned on Feb 11, 2025
- Susan M. CollinsR-MEsigned on Mar 6, 2025
- James C. JusticeR-WVsigned on Mar 6, 2025
- David McCormickR-PAsigned on Mar 6, 2025
- Pete RickettsR-NEsigned on Mar 6, 2025
- Dan SullivanR-AKsigned on Mar 6, 2025
- Joni ErnstR-IAsigned on Mar 10, 2025
- Cindy Hyde-SmithR-MSsigned on Mar 11, 2025
Roll calls
Recorded votes on the measure. Most measures move by voice vote or unanimous consent, which record no individual positions.
- Mar 6, 2025· Senate· Cloture· Cloture on the Motion to Proceed Agreed to 82–12
- Mar 13, 2025· Senate· Cloture· Cloture Motion Agreed to 84–15
- Mar 14, 2025· Senate· Passage· Bill Passed 84–16
- Jun 12, 2025· House· Passage· Passed 321–104
History
Every action as published, oldest first. Roll calls link to how each member voted.
- Jan 30, 2025Introduced in Senate
- Jan 30, 2025 · SenateRead twice and referred to the Committee on the Judiciary.
- Feb 27, 2025 · SenateCommittee on the Judiciary. Ordered to be reported with an amendment in the nature of a substitute favorably.
- Mar 3, 2025Committee on the Judiciary. Reported by Senator Grassley with an amendment in the nature of a substitute. Without written report.
- Mar 3, 2025 · SenateCommittee on the Judiciary. Reported by Senator Grassley with an amendment in the nature of a substitute. Without written report.
- Mar 3, 2025 · SenatePlaced on Senate Legislative Calendar under General Orders. Calendar No. 18.
- Mar 4, 2025 · SenateMotion to proceed to consideration of measure made in Senate. (CR S1488)
- Mar 4, 2025 · SenateCloture motion on the motion to proceed to the measure presented in Senate. (CR S1488)
- Mar 5, 2025 · SenateMotion to proceed to measure considered in Senate. (CR S1521)
- Mar 6, 2025 · SenateMotion to proceed to measure considered in Senate. (CR S1596)
- Mar 6, 2025 · SenateCloture on the motion to proceed to the measure invoked in Senate by Yea-Nay Vote. 82 - 12. Record Vote Number: 110. (CR S1596)Senate · Roll call 110
- Mar 10, 2025 · SenateMotion to proceed to measure considered in Senate. (CR S1623)
- Mar 10, 2025 · SenateMotion to proceed to consideration of measure agreed to in Senate by Voice Vote. (consideration: CR S1623)
- Mar 10, 2025 · SenateMeasure laid before Senate by motion.
- Mar 11, 2025 · SenateConsidered by Senate. (consideration: CR S1659)
- Mar 11, 2025 · SenateCloture motion on the measure presented in Senate. (CR S1659)
- Mar 13, 2025 · SenateCloture on the measure invoked in Senate by Yea-Nay Vote. 84 - 15. Record Vote Number: 124. (CR S1735)Senate · Roll call 124
- Mar 13, 2025 · SenateConsidered by Senate. (consideration: CR S1735)
- Mar 14, 2025 · SenateConsidered by Senate. (consideration: CR S1762-1765)
- Mar 14, 2025 · SenateThe committee substitute agreed to by Unanimous Consent.
- Mar 14, 2025Passed/agreed to in Senate: Passed Senate with an amendment by Yea-Nay Vote. 84 - 16. Record Vote Number: 127.Senate · Roll call 127
- Mar 14, 2025 · SenatePassed Senate with an amendment by Yea-Nay Vote. 84 - 16. Record Vote Number: 127.Senate · Roll call 127
- Mar 14, 2025 · SenateMessage on Senate action sent to the House.
- Mar 18, 2025 · HouseReceived in the House.
- Mar 18, 2025 · HouseHeld at the desk.
- Jun 9, 2025 · HouseRules Committee Resolution H. Res. 489 Reported to House. Rule provides for consideration of H.R. 884, H.R. 2056, H.R. 2096 and S. 331. The resolution provides for consideration of H.R. 884, H.R. 2056, H.R. 2096, and S. 331 under a closed rule with one hour of general debate for each bill. The resolution provides for one motion to recommit on H.R. 884, H.R. 2056, and H.R. 2096, and one motion to commit on S. 331.
- Jun 10, 2025 · HouseRule H. Res. 489 passed House.
- Jun 11, 2025 · HouseConsidered under the provisions of rule H. Res. 489. (consideration: CR H2625-2633)
- Jun 11, 2025 · HouseRule provides for consideration of H.R. 884, H.R. 2056, H.R. 2096 and S. 331. The resolution provides for consideration of H.R. 884, H.R. 2056, H.R. 2096, and S. 331 under a closed rule with one hour of general debate for each bill. The resolution provides for one motion to recommit on H.R. 884, H.R. 2056, and H.R. 2096, and one motion to commit on S. 331.
- Jun 11, 2025 · HouseDEBATE - The House proceeded with one hour of debate on S. 331.
- Jun 11, 2025 · HouseThe previous question was ordered pursuant to the rule.
- Jun 11, 2025 · HousePOSTPONED PROCEEDINGS - At the conclusion of debate on S. 331, the Chair put the question on passage of the bill and by voice vote, announced that the ayes had prevailed. Mr. Pallone demanded the yeas and nays and the Chair postponed further proceedings until a time to be announced.
- Jun 12, 2025 · HouseConsidered as unfinished business. (consideration: CR H2806)
- Jun 12, 2025Passed/agreed to in House: On passage Passed by the Yeas and Nays: 321 - 104 (Roll no. 166). (text: 6/11/2025 CR H2625-2627)House · Roll call 166
- Jun 12, 2025 · HouseOn passage Passed by the Yeas and Nays: 321 - 104 (Roll no. 166). (text: 6/11/2025 CR H2625-2627)House · Roll call 166
- Jun 12, 2025 · HouseMotion to reconsider laid on the table Agreed to without objection.
- Jul 8, 2025Presented to President.
- Jul 8, 2025 · HousePresented to President.
- Jul 16, 2025Signed by President.
- Jul 16, 2025Signed by President.
- Jul 16, 2025Became Public Law No: 119-26.
- Jul 16, 2025Became Public Law No: 119-26.
Committees
Committees and subcommittees the measure was referred to.
Agencies in its committees' jurisdiction
Analisa's mapping of committee jurisdiction to federal agencies; the bill may touch others, or none of these.
Sources and method
Every figure on this page traces to these records.
- Bill status: bills and resolutions, sponsors, actions, subjects and CRS summaries (U.S. Government Publishing Office (GovInfo), from Congress.gov (Library of Congress))GovInfo Bill Status bulk data (Congress.gov; summaries by the Congressional Research Service) · data current to Oct 3, 2026 · loaded Oct 3, 2026 · license: Public domain (U.S. Government work, 17 U.S.C. § 105)
- Members of Congress, their terms, committees and identifiers (The @unitedstates project (from the Biographical Directory of the U.S. Congress, the House and the Senate))unitedstates/congress-legislators: legislators, committees and current committee membership · data current to Oct 3, 2026 · loaded Oct 3, 2026 · license: CC0 1.0 (public domain dedication)
- House roll-call votes (Office of the Clerk, U.S. House of Representatives)Office of the Clerk, U.S. House of Representatives, roll-call vote records · data current to Oct 3, 2026 · loaded Oct 3, 2026 · license: Public domain (U.S. Government work, 17 U.S.C. § 105)
- Senate roll-call votes and DW-NOMINATE scores (Voteview (UCLA Department of Political Science))Lewis, Jeffrey B., Keith Poole, Howard Rosenthal, Adam Boche, Aaron Rudkin, and Luke Sonnet (2026). Voteview: Congressional Roll-Call Votes Database. https://voteview.com/ · data current to Oct 3, 2026 · loaded Oct 3, 2026 · license: Free to use with the required citation
- Lobbying disclosures (LD-1 registrations, LD-2 quarterly reports, LD-203 contribution reports) (Clerk of the U.S. House of Representatives)Clerk of the House, Lobbying Disclosure Act filings (organizations only; lobbyists' names are not loaded) · data current to Oct 3, 2026 · loaded Oct 3, 2026 · license: Public domain (U.S. Government work, 17 U.S.C. § 105)
- Positions are shown only where a roll call recorded them; voice votes and unanimous consent record none.