HALT Fentanyl Act
Permanently places fentanyl-related substances in the most restricted drug category, which carries the strictest criminal penalties, and eases registration for researchers who study them.
What this law changes
From a secondary sourcePermanently places fentanyl-related substances in the most restricted drug category, which carries the strictest criminal penalties, and eases registration for researchers who study them.
This account is written from the official description of the bill. We have saved the law's official text and have not finished checking the account against it.
Transparency Score
The Transparency Score is the share of this law’s dollars that goes to what the law says it is for.
Transparency Score
Share of the text within the stated purpose:Not checked yetThe text of this law provides and authorizes no dollar amount. The score is the share of its text within the stated intent. That share is "Not checked yet": no reading of this law is approved by a person yet.
How this is counted
- Transparency Score: dollars in sections a person approved as within the stated intent, divided by total dollars in the law. Shown as a percentage. Higher means more of the money goes to what the law says it is for.
- Beside it, the same two numbers the other way round: total dollars divided by dollars within the stated intent. 1.00 means every dollar is within the stated intent. When no dollar is within the stated intent this ratio cannot be computed, and the answer says so.
- Total dollars: appropriated dollars plus authorized dollars, read from the law's text by the rules below. Dollars in a section whose reading is unclear or was not read count in the total and are shown apart as unclear.
- A law whose text provides and authorizes no dollar amount reads "No money in this law". Its score is the share of its words that are in sections within the stated intent.
- The score reads "Not checked yet" until a person approves the law's reading of which sections are within the stated intent. The dollar totals need no reading and are shown before that.
- The dollar totals read "Not checked yet" when more than 10 percent of the dollars read could not be sorted by the rules.
- Every dollar amount in our saved text of the law is read: "$1,234,567", "$5 billion", "$2.5 million". Margin notes, page marks and the table of contents are left out. Each amount is kept with the words printed around it.
- Appropriated: the sentence says "there is appropriated", "is hereby appropriated" or "out of any money in the Treasury not otherwise appropriated"; or the amount is the one an appropriations paragraph ("For ..., $X") provides under an account heading of an appropriations act.
- Authorized: the sentence says "authorized to be appropriated". An authorization lets a later law provide the money. It provides none itself.
- A list under such a sentence ("there is appropriated the following: (1) ...; (2) ..."): an amount that begins an item is counted the same way as the sentence says, unless the sentence gives a total first. Then the items are parts of that total.
- "$X for each of fiscal years 2026 through 2030" is counted as X times the number of years named (here 5). The yearly figure, the years and the product are all kept. "For each fiscal year" with no years named is counted once, and the answer says so.
- Open-ended: "such sums as may be necessary" names no amount. It is counted as an item and adds no dollars.
- Rescinded: "is hereby rescinded", "permanently cancelled", or an item of a list headed "the following funds are hereby rescinded". Shown apart. Not subtracted from the total.
- Not spending, and left out of the total: an amount after "not to exceed", "not more than", "up to", "less than", "in excess of" and like words; a fine or penalty; a limit the law raises ("the limitation is increased by $X"); a figure the law strikes from another law; and a figure inside words it writes into another law ("striking $X and inserting $Y"), unless the same sentence says the figure is authorized or appropriated.
- Counted once: an amount after "of which", after "Provided, That", or after "of the amounts made available" is a part of a total already counted. Where a paragraph ends "in all, $X", that total is counted and the amounts before it are its parts.
- An amount the rules cannot sort is "not classified". It is listed with its words and left out of the total. Nothing is guessed.
- Total dollars: appropriated dollars plus authorized dollars. The two are also shown apart.
What the law says it is for
Confirmed from the official recordThese are the law’s own words, and the words of Congress’s records, about what the law is for.
Official title
“To amend the Controlled Substances Act with respect to the scheduling of fentanyl-related substances, and for other purposes.”
The words under "An Act", Public Law 119-26, official text · Saved October 5, 2026 · Fingerprint cea195ecdf60d4a2
Short title
“Halt All Lethal Trafficking of Fentanyl Act”
The sentence that names the Act, Public Law 119-26, official text · Saved October 5, 2026 · Fingerprint cea195ecdf60d4a2
Short title
“HALT Fentanyl Act”
The sentence that names the Act, Public Law 119-26, official text · Saved October 5, 2026 · Fingerprint cea195ecdf60d4a2
Congress's summary · Congressional Research Service
“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 quote stops here. The source has the full text.
Summary of the version: Public Law, Congressional Research Service summary: Public Law · Saved October 6, 2026 · Fingerprint c6044882494a4755
The law has no findings or purpose section.
The bill's record names no committee report.
Dollars in this law
Confirmed from the official recordThe text of this law provides and authorizes no dollar amount.
Source: Public Law 119-26, official text · Saved October 5, 2026 · Fingerprint cea195ecdf60d4a2
Other measures
Each measure has its own status. None is added into the score.
- Dollars in sections added along the way
- No money in this law
- Member-requested dollars as a share of appropriated dollars
- Not checked yet
No list of member-requested spending is printed in the 120 official records saved for this law, and no committee report says there is none.
- Open-ended amounts (“such sums as may be necessary”)
- 0 passagesConfirmed from the official record
- Other bills whose text this law contains
- 1 billConfirmed from the official record
- How the House passed it
- Recorded vote: 321 Yes, 104 No, 0 Present, 7 Did not vote, June 12, 2025Confirmed from the official record
- How the Senate passed it
- Recorded vote: 84 Yes, 16 No, 0 Present, 0 Did not vote, March 14, 2025Confirmed from the official record
- Committee report saved
- None in the official recordConfirmed from the official record
The bill's official record names no committee report.
- Hearing saved
- None in the official recordConfirmed from the official record
The bill's official record names no hearing.
How these are counted
- Added along the way, sections: sections of the final law marked "added later", divided by the sections compared.
- Added along the way, words: words in those sections, divided by the words in the sections compared.
- Each text is read as a list of words. A run is 5 words in a row. For each section of the final law we count the share of its runs that appear anywhere in the first published text of the bill. 90 percent or more: in the first text. From 20 to 90 percent: changed. Under 20 percent: added later. A section with fewer than 20 words is not compared.
- Sections outside the stated intent: sections a person approved as outside the stated intent, divided by the sections read. The same count is given in words.
- Member-requested spending: the number of items in the lists Congress printed for the law, and the sum of their dollar amounts.
- A part that is not checked yet is shown as "Not checked yet". It is never counted as zero. No single blended number is given.
Added along the way
Confirmed from the official record0 of the 7 sections compared are added after the first published text of the bill. None is changed. 7 are in the first text.
A section counts as added later when under 20 percent of its wording appears in the first published text.
The first published text (Introduced in Senate, January 30, 2025): S. 331, Introduced in Senate · Saved October 7, 2026 · Fingerprint 3939bd19ba612d09
Published texts of this bill, in order: Introduced in Senate (January 30, 2025), Reported to Senate (March 3, 2025), Engrossed in Senate (March 14, 2025), Enrolled Bill.
Sections added later
No section compared is added later.
Amendments adopted
The record lists no adopted amendment to this bill.
Other bills whose text this law contains
The Congressional Research Service, a part of the Library of Congress, marks 1 other bill with the words “Public law contains the text”. That means this law includes text from that bill. This page does not compare its text with the law.
- H.R. 27 HALT Fentanyl Act
Member-requested spending
No list foundNo list of member-requested spending is printed in the 120 official records saved for this law, and no committee report says there is none.
Sections outside the stated intent
Not checked yetA person reviews each reading before it appears here.
On the record
On the record: Not started.
Press releases by members of Congress
From a secondary sourceThese are press releases from members' official websites that name this law. We save a copy of each one.
12 press releases
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Scalise’s End-of-Year Recap: One Year of Republicans Delivering on our Promises
“S. 331 (Rep. Griffith) – HALT Fentanyl Act: Permanently classifies fentanyl-related substances (FRS) in Schedule I of the Controlled Substances Act, guarantees law enforcement has the resources to keep these drugs off the street, and allows for further research of FRS.”
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Scalise’s Summer Update: Six Months of Winning for the American People
“S. 331 (Rep. Griffith) – HALT Fentanyl Act: Permanently classifies fentanyl-related substances (FRS) in Schedule I of the Controlled Substances Act, guarantees law enforcement has the resources to keep these drugs off the street, and allows for further research of FRS.”
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Schmidt, Congress Take Strong Step Forward in Fight Against Opioid Crisis
“S.331, the HALT Fentanyl Act, was originally introduced by Congressmen Morgan Griffith (VA-09) and Bob Latta (OH-05) and Senator Bill Cassidy (R-LA) to permanently classify FRS (fentanyl analogues) as schedule I drugs. In 2018, the Drug Enforcement Administration issued a temporary scheduling order for FRS, which was subsequently extended by Congress several times.”
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LaLota Votes to Crack Down on Fentanyl Trafficking, Protect Long Island Families
“Washington, D.C. — Congressman Nick LaLota (Suffolk County, NY) released the following statement after voting to pass S. 331, the bipartisan Halt All Lethal Trafficking (HALT) of Fentanyl Act, making fentanyl-related substances permanently classified as Schedule I drugs and providing Law Enforcement stronger tools to target traffickers. S. 331 is a companion bill to H.R. 27, the Halt All Lethal”
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Congressman Davis Votes for to Protect Eastern NC from Lethal Drugs
“Washington, D.C. – Congressman Don Davis (NC-01) voted for a third time to support a version of S. 331, the Halt All Lethal Trafficking of (HALT) Fentanyl Act, which passed the House by a margin of 321-104.”
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Arrington Fights to Defend Our Communities from Fentanyl
“WASHINGTON, D.C. – Today, House Budget Chairman Jodey Arrington (TX-19) celebrated the passing of S.331, the Halt All Lethal Trafficking (HALT) of Fentanyl Act, legislation to permanently place fentanyl on Schedule 1 of the Controlled Substances Act (CSA) – giving law enforcement a critical tool to prosecute offenders and keep our local communities safe.”
Show all 12
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“WASHINGTON, D.C. — Congressman Josh Riley (NY-19) today voted to pass S. 331, bipartisan legislation that permanently classifies fentanyl-related substances as Schedule I drugs—the toughest designation under federal law. The bill passed with broad bipartisan support and now heads to the President’s desk.”
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Rep. Simpson Votes to Combat Illegal Fentanyl
“WASHINGTON — Today, Idaho Congressman Mike Simpson voted in favor of S. 331 - the Halt All Lethal Trafficking of (HALT) Fentanyl Act. This legislation permanently extends President Trump’s 2018 Schedule I classification of fentanyl-related substances and gives law enforcement the tools they need to keep Americans safe from dangerous illicit drugs.”
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Rep. Moore Votes for HALT Fentanyl Act, Bill Headed to President’s Desk
“Washington, D.C. – Earlier today, the House of Representatives passed S. 331 – the HALT Fentanyl Act, which permanently classifies fentanyl and fentanyl related substances as Schedule 1 under the Controlled Substances Act. Congressman Riley M. Moore voted “Yes” on the legislation.”
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Hayes Statement on Upcoming Vote for S. 331, the HALT Fentanyl Act
“WASHINGTON D.C. – Today, Congresswoman Jahana Hayes (CT-05) issued the following statement on the upcoming House floor vote on S.331, the HALT Fentanyl Act.”
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CONGRESSMAN BISHOP & BLUE DOG COALITION HELP LEAD CONGRESSIONAL ACTION ON FENTANYL CRISIS
“WASHINGTON – Congressman Sanford D. Bishop, Jr. (GA-02) supported the passage of S. 331, the HALT Fentanyl Act. The bill will permanently reschedule fentanyl-related substances as Schedule I substances under the Controlled Substances Act of 1970; while maintaining access to FDA-approved uses of fentanyl.”
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Senator Moody Cosponsors the HALT Fentanyl Act
“WASHINGTON, D.C .— Senator Ashley Moody today announced her support as a cosponsor of S. 331, the HALT Fentanyl Act. This legislation would permanently classify fentanyl-related substances under Schedule I of the Controlled Substances Act, as well as establish penalties.”
Read from 539 of 539 members' sites, releases since January 3, 2025, through October 7, 2026.
Press releases by organizations
From a secondary sourceThese are press releases from the websites of organizations named in lobbying reports, where the release names this law. We save a copy of each one.
1 press release
- LEADERSHIP CONFERENCE ON CIVIL AND HUMAN RIGHTSMarch 14, 2025
The HALT Fentanyl Act Will Repeat Mistakes of the Past
“WASHINGTON — Jesselyn McCurdy, executive vice president for government affairs at The Leadership Conference on Civil and Human Rights, issued the following statement after the Senate passed S. 331, the Halt All Lethal Trafficking (HALT) of Fentanyl Act:”
Our reader could not tell the article apart from the rest of the page with confidence. The sentence shown may come from another part of the page.
Named in 2 lobbying reports, none of them on this law.
No registered political committee found under this name.
Read from 510 of 510 organizations' sites, releases since January 3, 2025, through October 7, 2026.
What it touches
Kind of law: New or changed rules. Budget effect: No direct effect on agency budgets.
Government
- Justice and enforcement
- Laws and regulations
The economy
- No direct economic effect
Daily life
- Safety and policing
- Health
Agencies it funds or directs
Dollar amounts:Not checked yetHow it passed
The Senate passed it 84 to 16 on March 14, 2025.
The House passed it 321 to 104 on June 12, 2025, with 7 members who did not vote.
The question on the official record: House, “On Passage”. Senate, “On Passage of the Bill (S. 331, as amended)”.
| Chamber and party | Yes | No | Present | Did not vote |
|---|---|---|---|---|
| House Republicans | 217 | 1 | 0 | 2 |
| House Democrats | 104 | 103 | 0 | 5 |
| Senate Republicans | 53 | 0 | 0 | 0 |
| Senate Democrats | 30 | 15 | 0 | 0 |
| Senate independents | 1 | 1 | 0 | 0 |
How each member votes
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Lobbying reports that name this bill
Confirmed from the official record3 saved lobbying reports name S. 331. The amount is what the report gives for the whole quarter: everything the registrant did for that client, all issues together. A linked name opens that organization’s page on this site.
| Registrant | Client | Amount for the whole quarter | Quarter | Report |
|---|---|---|---|---|
| UNIVERSITY OF IOWA | UNIVERSITY OF IOWA | $50,000.00reported as expenses | April to June 2026 | Open the report |
| ASSOCIATION OF AMERICAN MEDICAL COLLEGES | ASSOCIATION OF AMERICAN MEDICAL COLLEGES | $821,438.00reported as expenses | April to June 2026 | Open the report |
| DUE PROCESS INSTITUTE | DUE PROCESS INSTITUTE | $15,000.00reported as expenses | April to June 2026 | Open the report |
See the lobbying page for S. 331
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.
Lobbying Disclosure Act reports, LDA.gov. This copy was read October 7, 2026 at 4:39 PM Eastern.
Where this comes from
We saved our own copy of each official vote file listed here before writing this page. A code beside a file is its fingerprint, a short code that changes if the file's contents change.