---
type: "Bill"
title: "Uniform controlled dangerous substances; modifying Schedule I substances. Effective date."
description: "Uniform controlled dangerous substances; modifying Schedule I substances. Effective date."
jurisdiction: "us/states/ok"
legislature: "Oklahoma Legislature"
session: "2020"
identifier: "SB 166"
citation: "Oklahoma SB 166 (2020)"
classification: ["bill"]
subjects: []
status: "enacted"
primary_sponsors: ["Kannady", "Standridge"]
version_count: 7
action_count: 20
vote_count: 0
first_action: "2019-02-04"
last_action: "2019-04-29"
source: "openstates"
source_identifier: "ocd-bill/24589c42-eebb-4681-803c-4eaa5a8c4079"
source_url: "http://www.oklegislature.gov/BillInfo.aspx?Bill=SB166&session=2000"
source_hash: "98d89d4a45656ebd07f3dd7b150b822cc572e720a0d4b3f08fc920dd6bc0ada7"
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 166 (2020) — Uniform controlled dangerous substances; modifying Schedule I substances. 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/SB166 INT.PDF)
2. **Committee Amendment** (committee substitute) — [source](http://webserver1.lsb.state.ok.us/cf_pdf/2019-20 COMMITTEE AMENDMENTS/Senate/SB166 PCS.PDF)
3. **Engrossed** (committee substitute) — [source](http://webserver1.lsb.state.ok.us/cf_pdf/2019-20 ENGR/SB/SB166 ENGR.PDF)
4. **Enrolled (final version)** (committee substitute) — [source](http://webserver1.lsb.state.ok.us/cf_pdf/2019-20 ENR/SB/SB166 ENR.PDF)
5. **Floor (House)** (committee substitute) — [source](http://webserver1.lsb.state.ok.us/cf_pdf/2019-20 FLR/HFLR/SB166 HFLR.PDF)
6. **Floor (Senate)** (committee substitute) — [source](http://webserver1.lsb.state.ok.us/cf_pdf/2019-20 FLR/SFLR/SB166 SFLR.PDF)
7. **Senate Committee Substitute** (committee substitute) — [source](http://webserver1.lsb.state.ok.us/cf_pdf/2019-20 COMMITTEE SUBS/SCS/SB166 CS.PDF)

## Sponsors

- Kannady — primary (person)
- Standridge — 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 Standridge
- **2019-02-05** Second Reading referred to Public Safety `referral-committee, reading-2`
- **2019-02-12** Coauthored by Representative Kannady (principal House author)
- **2019-02-25** Reported Do Pass, amended by committee substitute Public Safety committee; CR filed `committee-passage`
- **2019-03-05** General Order, Considered
- **2019-03-05** Measure passed: Ayes: 42 Nays: 1 `passage`
- **2019-03-05** Referred for engrossment
- **2019-03-06** Engrossed to House `passage`
- **2019-03-06** First Reading `introduction, reading-1`
- **2019-03-19** Second Reading referred to Judiciary `referral-committee, reading-2`
- **2019-03-27** CR; Do Pass Judiciary Committee `committee-passage`
- **2019-04-22** General Order
- **2019-04-22** Third Reading, Measure passed: Ayes: 92 Nays: 0 `passage, reading-3`
- **2019-04-22** Signed, returned to Senate
- **2019-04-23** Referred for enrollment
- **2019-04-24** Enrolled, to House
- **2019-04-24** Signed, returned to Senate
- **2019-04-24** Sent to Governor `executive-receipt`
- **2019-04-29** Approved by Governor 04/29/2019 `executive-signature`

## Source

OpenStates / OpenCivicData bulk snapshot [2026-07-01](https://data.openstates.org/daily/2026-07-01/public.pgdump); origin `ocd-bill/24589c42-eebb-4681-803c-4eaa5a8c4079`. Confidence: reported (aggregated from official Oklahoma legislature records).