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S. 545 119th Congress Senate

Combating Illicit Xylazine Act

Official title: A bill to prohibit certain uses of xylazine, and for other purposes.

Introduced: February 12, 2025 Introduced by: Catherine Cortez Masto Democratic · Nevada See on congress.gov
Crime and Law Enforcement Congressional oversightConsumer affairsCriminal procedure and sentencingDrug safety, medical device, and laboratory regulation
More subjectsShow fewer subjects
Drug trafficking and controlled substancesLicensing and registrationsManufacturingU.S. Sentencing CommissionVeterinary medicine and animal diseases
 Everywhere this bill has been 5 steps
Introduced
In committee
Reported out
Passed House
Passed Senate
To President
Became law
Apr 15, 2026
Placed on Senate Legislative Calendar under General Orders. Calendar No. 372.
Apr 15, 2026
Committee on the Judiciary. Reported by Senator Grassley with an amendment in the nature of a substitute. Without written report.
Mar 26, 2026
Committee on the Judiciary. Ordered to be reported with an amendment in the nature of a substitute favorably.
Feb 12, 2025
Introduced in Senate
Feb 12, 2025
Read twice and referred to the Committee on the Judiciary.
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What's happening now April 15, 2026

Placed on Senate Legislative Calendar under General Orders. Calendar No. 372.

 Plain-English summary Congressional Research Service

Combating Illicit Xylazine Act

This bill regulates xylazine under the Controlled Substances Act (CSA).

Xylazine, also known as tranq, is a nonopioid sedative and pain reliever that is approved for use in animals. Recently, the Drug Enforcement Administration (DEA) has reported an increase in trafficking of fentanyl mixed with xylazine.

This bill adds xylazine, including its salts, isomers, and salts of isomers, to schedule III of the CSA. Schedule III controlled substances, including anabolic steroids, buprenorphine, and ketamine, have less potential for abuse than a schedule I or II substance, have a currently accepted medical use, and have low or moderate risk of dependence if abused.

Under the bill, manufacturing, distributing, or dispensing xylazine, or possessing with intent to manufacture, distribute, or dispense xylazine for illicit use is subject to criminal penalties under the CSA. The bill also requires xylazine transactions to be tracked in the drug reporting system maintained by the DEA.

The bill exempts from registration under the CSA persons and entities that possess xylazine (1) lawfully dispensed by a veterinarian or pharmacy and (2) for an animal or for use in certain animal-control or wildlife programs.

The bill also exempts xylazine manufacturers from the CSA's physical security requirements.

Finally, the bill requires the DEA, in coordination with the Department of Health and Human Services (HHS), to provide Congress with a report on how the agencies previously determined whether xylazine should be a controlled substance, including the full text of HHS's recommendations to the DEA for scheduling xylazine.

 Related & companion bills 1
 Bill text 2 versions

Source documents hosted by congress.gov.

 Committees of jurisdiction 1
 Lobbying activity 24

Registered lobbyists who named this bill in their disclosure filings. Source: federal Lobbying Disclosure Act filings.

  • STEPTOE LLP
    for PEACE OFFICERS RESEARCH ASSOCIATION OF CALIFORNIA · California · 3rd Quarter 2026 (July 1 - Sep 30)
  • LONGBOW PUBLIC POLICY GROUP, LLC
    for SERGEANTS BENEVOLENT ASSOCIATION OF NEW YORK CITY · New York · 3rd Quarter 2026 (July 1 - Sep 30)
  • NATIONAL ASSOCIATION OF CRIMINAL DEFENSE LAWYERS (NACDL)
    for NATIONAL ASSOCIATION OF CRIMINAL DEFENSE LAWYERS (NACDL) · District of Columbia · 3rd Quarter 2026 (July 1 - Sep 30)
  • DUE PROCESS INSTITUTE
    for DUE PROCESS INSTITUTE · District of Columbia · 2nd Quarter 2026 (Apr 1 - June 30)
  • STEPTOE LLP
    for PEACE OFFICERS RESEARCH ASSOCIATION OF CALIFORNIA · California · 2nd Quarter 2026 (Apr 1 - June 30)
  • DRUG POLICY ALLIANCE
    for DRUG POLICY ALLIANCE · New York · 2nd Quarter 2026 (Apr 1 - June 30)

Bodies those filers lobbied

A filing lists the bills it worked on and the parts of government it contacted in separate sections, so these are the bodies those filers named anywhere in the filing, not a per-bill breakdown.

See all 24 filings →
 Cosponsors 35
D
Merkley, Jeff
Oregon · Jun 9, 2026
R
Cruz, Ted
Texas · Mar 26, 2026
D
Durbin, Richard J.
Illinois · Mar 26, 2026
R
Blackburn, Marsha
Tennessee · Mar 19, 2026
R
Cornyn, John
Texas · Mar 19, 2026
R
Moody, Ashley
Florida · Mar 17, 2026
R
Lankford, James
Oklahoma · Feb 24, 2026
R
McCormick, David
Pennsylvania · Feb 10, 2026
R
Crapo, Mike
Idaho · Sep 29, 2025
R
Justice, James C.
West Virginia · Sep 10, 2025
I
King, Angus S., Jr.
Maine · Jul 24, 2025
R
Budd, Ted
North Carolina · Jul 23, 2025
R
Lummis, Cynthia M.
Wyoming · Jul 23, 2025
D
Bennet, Michael F.
Colorado · Jul 22, 2025
D
Fetterman, John
Pennsylvania · Jul 16, 2025
R
Tillis, Thomas
North Carolina · Feb 24, 2025
D
Gallego, Ruben
Arizona · Feb 18, 2025
D
Blumenthal, Richard
Connecticut · Feb 12, 2025
R
Britt, Katie Boyd
Alabama · Feb 12, 2025
D
Cantwell, Maria
Washington · Feb 12, 2025
R
Capito, Shelley Moore
West Virginia · Feb 12, 2025
D
Gillibrand, Kirsten E.
New York · Feb 12, 2025
R
Grassley, Chuck
Iowa · Feb 12, 2025
D
Hassan, Margaret Wood
New Hampshire · Feb 12, 2025
R
Hyde-Smith, Cindy
Mississippi · Feb 12, 2025
D
Kaine, Tim
Virginia · Feb 12, 2025
D
Kelly, Mark
Arizona · Feb 12, 2025
D
Klobuchar, Amy
Minnesota · Feb 12, 2025
D
Luján, Ben Ray
New Mexico · Feb 12, 2025
R
Risch, James E.
Idaho · Feb 12, 2025
D
Rosen, Jacky
Nevada · Feb 12, 2025
R
Scott, Rick
Florida · Feb 12, 2025
D
Shaheen, Jeanne
New Hampshire · Feb 12, 2025
R
Wicker, Roger F.
Mississippi · Feb 12, 2025
R
Young, Todd
Indiana · Feb 12, 2025
Cite this page click to expand
APA
U.S. Congress. (2026). S. 545: Combating Illicit Xylazine Act. 119th Congress. Open America. https://openamerica.io/bill/119-S-545/
MLA
"S. 545: Combating Illicit Xylazine Act." 119th Congress, 2026, Open America, https://openamerica.io/bill/119-S-545/.
Bluebook (legal)
S. 545, 119th Cong. (2026), https://openamerica.io/bill/119-S-545/.
Markdown link
[S. 545: Combating Illicit Xylazine Act](https://openamerica.io/bill/119-S-545/)
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