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Sponsored by Rep. H. Morgan Griffith (R-VA) · 61 active : 58 Republicans, 2 Democrats, 1 Independent
Latest action: Received in the Senate and Read twice and referred to the Committee on the Judiciary.
Halt All Lethal Trafficking of Fentanyl Act or the HALT Fentanyl Act
This bill 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 bill, 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 bill establishes a new, alternative registration process for certain schedule I research.
The bill 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 bill expresses the sense that Congress agrees with the interpretation of 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
Each member’s recorded vote compared with their swing projection from before the vote. A member by voting against most of their own party.
| BandBand before the vote | VotedVoted yea or nay | BrokeBroke with party | Share |
|---|---|---|---|
| Swing | 27 | 17 | 63% |
| Middle | 172 | 43 | 25% |
| Entrenched | 212 | 36 | 17% |
| All |
Members fall into . 2 representatives don’t have enough data yet and are marked “insufficient data”. Non-voting delegates are not counted. The bill is not before the House right now; these scores show where members would stand.
Bars show each input from 0 to 100: ideology gap, scorecard gap, . is the seat’s partisan lean, and shows how much of the input data a score has. Where the House has voted, each member’s appears with the projection made before it.
Loading similar votes
controlled substance analogue
specifically excludes a controlled substance.
| 411 |
| 96 |
| 23% |
: Pair any member who broke with one who stayed with their party: in 67% of those pairs, the one who broke had the higher swing score before the vote. Chance would be 50%.
Projections from swing-v2, computed with data from before the vote. Present and not voting never count as breaking.

These members have less than half of the model’s inputs, so their scores are not banded or ranked.


Ringed dots broke with their party on the vote.
Ideology is each member’s score. The cluster low on the chart includes the bill’s 62 sponsor and cosponsors in the House: they have already committed, so they score as entrenched. 2 representatives without a DW-NOMINATE score or with insufficient data are not plotted.
Similar votes count toward swing-v3 in the House: total similarity weight 31.0 (needs 5.0).