---
type: "Bill"
title: "Narcotic treatment programs; opioid substitution treatment programs. Effective date."
description: "Narcotic treatment programs; opioid substitution treatment programs. Effective date."
jurisdiction: "us/states/ok"
legislature: "Oklahoma Legislature"
session: "2020"
identifier: "SB 629"
citation: "Oklahoma SB 629 (2020)"
classification: ["bill"]
subjects: []
status: "enacted"
primary_sponsors: ["Simpson", "Townley"]
version_count: 14
action_count: 29
vote_count: 2
first_action: "2019-02-04"
last_action: "2019-05-15"
source: "openstates"
source_identifier: "ocd-bill/57f6c027-2fee-4113-9e60-885a79a29cf8"
source_url: "http://www.oklegislature.gov/BillInfo.aspx?Bill=SB629&session=2000"
source_hash: "e2f4b8c3cb92c99a3f99e63e08e81948c9e58a345074f63c8bc15205eb62f233"
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-ok"]
---

# Oklahoma SB 629 (2020) — Narcotic treatment programs; opioid substitution treatment programs. Effective date.

## Version chain

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

1. **Introduced** (filed) — [source](http://webserver1.lsb.state.ok.us/cf_pdf/2019-20 INT/SB/SB629 INT.PDF)
2. **1 Floor Amendment by TOWNLEY** (committee substitute) — [source](http://webserver1.lsb.state.ok.us/cf_pdf/2019-20 FLOOR AMENDMENTS/House/SB629 FA1 TOWNLEYTA-SH.PDF)
3. **Amended And Engrossed** (committee substitute) — [source](http://webserver1.lsb.state.ok.us/cf_pdf/2019-20 AMENDMENTS/Amendment & Engr/SB629 HASB & ENGR.PDF)
4. **Committee Amendment** (committee substitute) — [source](http://webserver1.lsb.state.ok.us/cf_pdf/2019-20 COMMITTEE AMENDMENTS/Senate/SB629 PCS.PDF)
5. **Engrossed** (committee substitute) — [source](http://webserver1.lsb.state.ok.us/cf_pdf/2019-20 ENGR/SB/SB629 ENGR.PDF)
6. **Enrolled (final version)** (committee substitute) — [source](http://webserver1.lsb.state.ok.us/cf_pdf/2019-20 ENR/SB/SB629 ENR.PDF)
7. **Floor (House)** (committee substitute) — [source](http://webserver1.lsb.state.ok.us/cf_pdf/2019-20 FLR/HFLR/SB629 HFLR.PDF)
8. **Floor (Senate)** (committee substitute) — [source](http://webserver1.lsb.state.ok.us/cf_pdf/2019-20 FLR/SFLR/SB629 SFLR.PDF)
9. **House Committee Substitute for Senate Bill** (committee substitute) — [source](http://webserver1.lsb.state.ok.us/cf_pdf/2019-20 COMMITTEE SUBS/HCSS/SB629 HCS.PDF)
10. **SB629 (3-06-19) (SIMPSON) FS FA1.PDF** (committee substitute) — [source](http://webserver1.lsb.state.ok.us/cf_pdf/2019-20 FLOOR AMENDMENTS/Senate/SB629 (3-06-19) (SIMPSON) FS FA1.PDF)
11. **SB629 (3-06-19) (SIMPSON) RT FA2.PDF** (committee substitute) — [source](http://webserver1.lsb.state.ok.us/cf_pdf/2019-20 FLOOR AMENDMENTS/Senate/SB629 (3-06-19) (SIMPSON) RT FA2.PDF)
12. **SB629 FULLAMD1 TAMMY TOWNLEY-SH.PDF** (committee substitute) — [source](http://webserver1.lsb.state.ok.us/cf_pdf/2019-20 COMMITTEE AMENDMENTS/House/SB629 FULLAMD1 TAMMY TOWNLEY-SH.PDF)
13. **SB629 FULLAMD2 TAMMY TOWNLEY-SH.PDF** (committee substitute) — [source](http://webserver1.lsb.state.ok.us/cf_pdf/2019-20 COMMITTEE AMENDMENTS/House/SB629 FULLAMD2 TAMMY TOWNLEY-SH.PDF)
14. **Senate Committee Substitute** (committee substitute) — [source](http://webserver1.lsb.state.ok.us/cf_pdf/2019-20 COMMITTEE SUBS/SCS/SB629 CS.PDF)

## Votes

- FOURTH READING — **46–0** (pass) · upper
- THIRD READING — **44–0** (pass) · upper

## Sponsors

- Simpson — primary (person)
- Townley — primary (person)

## Timeline

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

- **2019-02-04** First Reading `introduction, reading-1`
- **2019-02-04** Authored by Senator Simpson
- **2019-02-05** Second Reading referred to Health and Human Services `referral-committee, reading-2`
- **2019-02-25** Reported Do Pass, amended by committee substitute Health and Human Services committee; CR filed `committee-passage`
- **2019-02-25** Title stricken
- **2019-03-06** Coauthored by Representative Townley (principal House author)
- **2019-03-12** General Order, Amended by Floor Substitute
- **2019-03-12** Title restored
- **2019-03-12** Measure passed: Ayes: 44 Nays: 0 `passage`
- **2019-03-12** Referred for engrossment
- **2019-03-13** Engrossed to House `passage`
- **2019-03-13** First Reading `introduction, reading-1`
- **2019-03-19** Second Reading referred to Appropriations and Budget `referral-committee, reading-2`
- **2019-03-20** Referred to Appropriations and Budget Health Subcommittee `referral-committee`
- **2019-04-01** Recommendation to the full committee; Do Pass Appropriations and Budget Health Subcommittee `committee-passage`
- **2019-04-11** CR; Do Pass, amended by committee substitute Appropriations and Budget Committee `committee-passage`
- **2019-04-17** General Order
- **2019-04-17** Amended `amendment-passage`
- **2019-04-17** Third Reading, Measure passed: Ayes: 93 Nays: 0 `passage, reading-3`
- **2019-04-17** Referred for engrossment
- **2019-04-18** Engrossed, signed, to Senate `passage`
- **2019-04-22** HAs read
- **2019-05-08** HAs adopted
- **2019-05-08** Measure passed: Ayes: 46 Nays: 0 `passage`
- **2019-05-08** Referred for enrollment
- **2019-05-09** Enrolled, to House
- **2019-05-09** Signed, returned to Senate
- **2019-05-09** Sent to Governor `executive-receipt`
- **2019-05-15** Approved by Governor 05/15/2019 `executive-signature`

## Source

OpenStates / OpenCivicData bulk snapshot [2026-07-01](https://data.openstates.org/daily/2026-07-01/public.pgdump); origin `ocd-bill/57f6c027-2fee-4113-9e60-885a79a29cf8`. Confidence: reported (aggregated from official Oklahoma legislature records).