---
type: "Bill"
title: "Schools; prohibiting certain vaccinations without prior authorization; effective date."
description: "Schools; prohibiting certain vaccinations without prior authorization; effective date."
jurisdiction: "us/states/ok"
legislature: "Oklahoma Legislature"
session: "2020"
identifier: "HB 2339"
citation: "Oklahoma HB 2339 (2020)"
classification: ["bill"]
subjects: []
status: "enacted"
primary_sponsors: ["Roberts (Sean)", "Standridge"]
version_count: 10
action_count: 31
vote_count: 2
first_action: "2019-02-04"
last_action: "2019-05-23"
source: "openstates"
source_identifier: "ocd-bill/17bfc450-21c0-42a9-840b-1ef21537630f"
source_url: "http://www.oklegislature.gov/BillInfo.aspx?Bill=HB2339&session=2000"
source_hash: "345e6fd72ede11d0f4f4e3ea37f30de984a9afcbbf245b3a5694df44abefe0d1"
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 HB 2339 (2020) — Schools; prohibiting certain vaccinations without prior authorization; 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/hB/HB2339 INT.PDF)
2. **Amended And Engrossed** (committee substitute) — [source](http://webserver1.lsb.state.ok.us/cf_pdf/2019-20 AMENDMENTS/Amendment & Engr/HB2339 SAHB & ENGR.PDF)
3. **Committee Amendment** (committee substitute) — [source](http://webserver1.lsb.state.ok.us/cf_pdf/2019-20 COMMITTEE AMENDMENTS/Senate/HB2339 CA1.PDF)
4. **Engrossed** (committee substitute) — [source](http://webserver1.lsb.state.ok.us/cf_pdf/2019-20 ENGR/hB/HB2339 ENGR.PDF)
5. **Enrolled (final version)** (committee substitute) — [source](http://webserver1.lsb.state.ok.us/cf_pdf/2019-20 ENR/hB/HB2339 ENR.PDF)
6. **Floor (House)** (committee substitute) — [source](http://webserver1.lsb.state.ok.us/cf_pdf/2019-20 FLR/HFLR/HB2339 HFLR.PDF)
7. **Floor (Senate)** (committee substitute) — [source](http://webserver1.lsb.state.ok.us/cf_pdf/2019-20 FLR/SFLR/HB2339 SFLR.PDF)
8. **HB2339 (4-16-19) (STANDRIDGE) FS FA1.PDF** (committee substitute) — [source](http://webserver1.lsb.state.ok.us/cf_pdf/2019-20 FLOOR AMENDMENTS/Senate/HB2339 (4-16-19) (STANDRIDGE) FS FA1.PDF)
9. **HB2339 FULLPCS1 SEAN ROBERTS-SH.PDF** (committee substitute) — [source](http://webserver1.lsb.state.ok.us/cf_pdf/2019-20 COMMITTEE AMENDMENTS/House/HB2339 FULLPCS1 SEAN ROBERTS-SH.PDF)
10. **House Committee Substitute** (committee substitute) — [source](http://webserver1.lsb.state.ok.us/cf_pdf/2019-20 COMMITTEE SUBS/HCS/HB2339 CS.PDF)

## Votes

- THIRD READING — **69–27** (pass) · lower
- THIRD READING — **42–0** (pass) · upper

## Sponsors

- Roberts (Sean) — 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 Representative Roberts (Sean)
- **2019-02-05** Second Reading referred to Public Health `referral-committee, reading-2`
- **2019-02-21** CR; Do Pass, amended by committee substitute Public Health Committee `committee-passage`
- **2019-03-12** General Order
- **2019-03-12** Coauthored by Representative(s) McDugle
- **2019-03-12** Authored by Senator Standridge (principal Senate author)
- **2019-03-12** Third Reading, Measure passed: Ayes: 69 Nays: 27 `passage, reading-3`
- **2019-03-12** Referred for engrossment
- **2019-03-13** Engrossed, signed, to Senate `passage`
- **2019-03-13** First Reading `introduction, reading-1`
- **2019-03-25** Coauthored by Representative West (Kevin)
- **2019-03-26** Second Reading referred to Health and Human Services `referral-committee, reading-2`
- **2019-03-28** Coauthored by Senator Murdock
- **2019-04-01** Coauthored by Senator Newhouse
- **2019-04-02** Coauthored by Representative Randleman
- **2019-04-08** Coauthored by Senator Dahm
- **2019-04-08** Reported Do Pass as amended Health and Human Services committee; CR filed `committee-passage`
- **2019-04-24** General Order, Amended by Floor Substitute
- **2019-04-24** Measure passed: Ayes: 42 Nays: 0 `passage`
- **2019-04-24** Referred for engrossment
- **2019-04-25** Engrossed to House `passage`
- **2019-04-25** SA's received
- **2019-05-23** SA's read, adopted
- **2019-05-23** Coauthored by Senator(s) Bergstrom
- **2019-05-23** Fourth Reading, Measure passed: Ayes: 57 Nays: 34 `passage`
- **2019-05-23** Referred for enrollment
- **2019-05-23** Enrolled, signed, to Senate
- **2019-05-23** Enrolled measure signed, returned to House
- **2019-05-23** Sent to Governor `executive-receipt`
- **2019-05-23** Approved by Governor 05/28/2019 `executive-signature`

## Source

OpenStates / OpenCivicData bulk snapshot [2026-07-01](https://data.openstates.org/daily/2026-07-01/public.pgdump); origin `ocd-bill/17bfc450-21c0-42a9-840b-1ef21537630f`. Confidence: reported (aggregated from official Oklahoma legislature records).