---
type: "Bill"
title: "Relating to the medical use of low-THC cannabis by patients with certain medical conditions and the establishment of compassionate-use institutional review boards to evaluate and approve proposed research programs to study the medical use of low-THC cannabis in the treatment of certain patients."
description: "Relating to the medical use of low-THC cannabis by patients with certain medical conditions and the establishment of compassionate-use institutional review boards to evaluate and approve proposed research programs to study the medical use of low-THC cannabis in the treatment of certain patients."
jurisdiction: "us/states/tx"
legislature: "Texas Legislature"
session: "87"
identifier: "HB 1535"
citation: "Texas HB 1535 (87)"
classification: ["bill"]
subjects: ["Crimes--Drugs (I0185)", "HEALTH & HUMAN SERVICES COMMISSION (V0177)", "Health--Other Diseases & Medical Conditions (I0383)", "MARIHUANA (S3105)", "MEDICAL BOARD", "TEXAS (V0644)", "Mental Health & Substance Abuse (I0019)", "Occupational Regulation--Health Occupations (I0540)", "PUBLIC SAFETY", "DEPARTMENT OF (V0251)", "STATE HEALTH SERVICES", "DEPARTMENT OF (V0463)"]
status: "enacted"
primary_sponsors: ["Dean", "Howard", "Klick", "Oliverson", "Price", "Schwertner"]
version_count: 5
action_count: 51
vote_count: 3
first_action: "2021-03-08"
last_action: "2021-06-15"
source: "openstates"
source_identifier: "ocd-bill/5d6457c4-180e-493b-bb39-ef677cb023fe"
source_url: "ftp://ftp.legis.state.tx.us/bills/87R/billhistory/house_bills/HB01500_HB01599/HB 1535.xml"
source_hash: "565a922be360e6be6fad1b4bbc4faf909554beea7468b5a6146594b696038893"
vintage: "2026-07-01"
source_snapshot: "https://data.openstates.org/daily/2026-07-01/public.pgdump"
retrieved_at: "2026-07-06"
confidence: "reported"
tags: ["legislation", "bill", "us-tx"]
---

# Texas HB 1535 (87) — Relating to the medical use of low-THC cannabis by patients with certain medical conditions and the establishment of compassionate-use institutional review boards to evaluate and approve proposed research programs to study the medical use of low-THC cannabis in the treatment of certain patients.

## Version chain

The bill's text revisions, in order — the diff chain from filing to enrollment.

1. **Introduced** (filed) — [source](http://capitol.texas.gov/tlodocs/87R/billtext/html/HB01535I.HTM)
2. **Engrossed** (committee substitute) — [source](http://capitol.texas.gov/tlodocs/87R/billtext/html/HB01535E.HTM)
3. **House Committee Report** (committee substitute) — [source](http://capitol.texas.gov/tlodocs/87R/billtext/html/HB01535H.HTM)
4. **Senate Committee Report** (committee substitute) — [source](http://capitol.texas.gov/tlodocs/87R/billtext/html/HB01535S.HTM)
5. **Enrolled** (enrolled) — [source](http://capitol.texas.gov/tlodocs/87R/billtext/html/HB01535F.HTM)

## Votes

- passage — **119–25** (pass) · lower
- other — **119–25** (fail) · upper
- passage — **134–12** (pass) · lower

## Sponsors

- Dean — primary (person)
- Howard — primary (person)
- Klick — primary (person)
- Oliverson — primary (person)
- Price — primary (person)
- Schwertner — primary (person)
- Allison — cosponsor (person)
- Alvarado — cosponsor (person)
- Anchia — cosponsor (person)
- Beckley — cosponsor (person)
- Bernal — cosponsor (person)
- Bettencourt — cosponsor (person)
- Blanco — cosponsor (person)
- Bowers — cosponsor (person)
- Buckingham — cosponsor (person)
- Buckley — cosponsor (person)
- Bucy — cosponsor (person)
- Cain — cosponsor (person)
- Campbell — cosponsor (person)
- Campos — cosponsor (person)
- Canales — cosponsor (person)
- Cason — cosponsor (person)
- Clardy — cosponsor (person)
- Cole — cosponsor (person)
- Collier — cosponsor (person)
- Cook — cosponsor (person)
- Cortez — cosponsor (person)
- Crockett — cosponsor (person)
- Davis — cosponsor (person)
- Deshotel — cosponsor (person)
- Dominguez — cosponsor (person)
- Eckhardt — cosponsor (person)
- Gervin-Hawkins — cosponsor (person)
- González, Jessica — cosponsor (person)
- Goodwin — cosponsor (person)
- Guillen — cosponsor (person)
- Gutierrez — cosponsor (person)
- Herrero — cosponsor (person)
- Hinojosa — cosponsor (person)
- Huberty — cosponsor (person)
- Hull — cosponsor (person)
- Hunter — cosponsor (person)
- Israel — cosponsor (person)
- Jetton — cosponsor (person)
- Johnson — cosponsor (person)
- Johnson, Julie — cosponsor (person)
- Lambert — cosponsor (person)
- Landgraf — cosponsor (person)
- Leach — cosponsor (person)
- Lopez — cosponsor (person)
- Lucio — cosponsor (person)
- Martinez — cosponsor (person)
- Menéndez — cosponsor (person)
- Meza — cosponsor (person)
- Middleton — cosponsor (person)
- Minjarez — cosponsor (person)
- Morales Shaw — cosponsor (person)
- Morales, Eddie — cosponsor (person)
- Neave — cosponsor (person)
- Nelson — cosponsor (person)
- Ordaz Perez — cosponsor (person)
- Ortega — cosponsor (person)
- Pacheco — cosponsor (person)
- Parker — cosponsor (person)
- Patterson — cosponsor (person)
- Perry — cosponsor (person)
- Ramos — cosponsor (person)
- Raney — cosponsor (person)
- Raymond — cosponsor (person)
- Reynolds — cosponsor (person)
- Rodriguez — cosponsor (person)
- Romero, Jr. — cosponsor (person)
- Rose — cosponsor (person)
- Rosenthal — cosponsor (person)
- Seliger — cosponsor (person)
- Shaheen — cosponsor (person)
- Slawson — cosponsor (person)
- Swanson — cosponsor (person)
- Talarico — cosponsor (person)
- Toth — cosponsor (person)
- White — cosponsor (person)
- Whitmire — cosponsor (person)
- Zwiener — cosponsor (person)

## Timeline

The legislative action history — every referral, reading, and vote.

- **2021-03-08** Filed `filing`
- **2021-03-11** Read first time `introduction, reading-1`
- **2021-03-11** Referred to Public Health `referral-committee`
- **2021-04-07** Considered in public hearing
- **2021-04-07** Testimony taken/registration(s) recorded in committee
- **2021-04-07** Reported favorably w/o amendment(s) `committee-passage`
- **2021-04-12** Comte report filed with Committee Coordinator
- **2021-04-12** Committee report distributed
- **2021-04-12** Committee report sent to Calendars
- **2021-04-26** Considered in Calendars
- **2021-04-28** Placed on General State Calendar
- **2021-04-28** Read 2nd time `reading-2`
- **2021-04-28** Amended `amendment-passage`
- **2021-04-28** Passed to engrossment as amended
- **2021-04-29** Read 3rd time `reading-3`
- **2021-04-29** Passed `passage`
- **2021-04-29** Record vote
- **2021-04-29** Reported engrossed
- **2021-05-03** Received from the House `introduction`
- **2021-05-20** Read first time `introduction, reading-1`
- **2021-05-20** Referred to State Affairs `referral-committee`
- **2021-05-24** Co-sponsor authorized
- **2021-05-24** Posting rule suspended
- **2021-05-24** Scheduled for public hearing on . . .
- **2021-05-24** Considered in public hearing
- **2021-05-24** Reported favorably as substituted `committee-passage-favorable`
- **2021-05-24** Committee report printed and distributed
- **2021-05-25** Co-sponsor authorized
- **2021-05-25** Placed on intent calendar
- **2021-05-25** Rules suspended-Regular order of business
- **2021-05-25** Read 2nd time & passed to 3rd reading
- **2021-05-25** Vote recorded in Journal
- **2021-05-25** Three day rule suspended
- **2021-05-25** Record vote
- **2021-05-25** Read 3rd time `reading-3`
- **2021-05-25** Passed `passage`
- **2021-05-25** Record vote
- **2021-05-27** Senate passage as amended reported
- **2021-05-27** Senate Amendments distributed
- **2021-05-27** Senate Amendments Analysis distributed
- **2021-05-28** House concurs in Senate amendment(s)
- **2021-05-28** Record vote
- **2021-05-28** Statement(s) of vote recorded in Journal
- **2021-05-28** Text of Senate Amendment(s)
- **2021-05-28** House concurs in Senate amendment(s)-reported
- **2021-05-30** Reported enrolled
- **2021-05-30** Signed in the House
- **2021-05-31** Signed in the Senate
- **2021-05-31** Sent to the Governor `executive-receipt`
- **2021-06-15** Signed by the Governor `executive-signature`
- **2021-06-15** Effective on 9/1/21 `became-law`

## Source

OpenStates / OpenCivicData bulk snapshot [2026-07-01](https://data.openstates.org/daily/2026-07-01/public.pgdump); origin `ocd-bill/5d6457c4-180e-493b-bb39-ef677cb023fe`. Confidence: reported (aggregated from official Texas legislature records).