---
type: "Bill"
title: "Health insurance; requiring guidelines for step therapy protocol for certain health insurance plans. Effective date."
description: "Health insurance; requiring guidelines for step therapy protocol for certain health insurance plans. Effective date."
jurisdiction: "us/states/ok"
legislature: "Oklahoma Legislature"
session: "2020"
identifier: "SB 509"
citation: "Oklahoma SB 509 (2020)"
classification: ["bill"]
subjects: []
status: "enacted"
primary_sponsors: ["Munson", "Rader"]
version_count: 6
action_count: 34
vote_count: 1
first_action: "2019-02-04"
last_action: "2019-04-16"
source: "openstates"
source_identifier: "ocd-bill/e4cff582-aeee-4206-bf82-d3456dd4d1ca"
source_url: "http://www.oklegislature.gov/BillInfo.aspx?Bill=SB509&session=2000"
source_hash: "94a00b4becdfee126cc444f831c0ca9bd1ea79c2c85fc7f197d0e6aa8f68893e"
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 509 (2020) — Health insurance; requiring guidelines for step therapy protocol for certain health insurance plans. 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/SB509 INT.PDF)
2. **Engrossed** (committee substitute) — [source](http://webserver1.lsb.state.ok.us/cf_pdf/2019-20 ENGR/SB/SB509 ENGR.PDF)
3. **Enrolled (final version)** (committee substitute) — [source](http://webserver1.lsb.state.ok.us/cf_pdf/2019-20 ENR/SB/SB509 ENR.PDF)
4. **Floor (House)** (committee substitute) — [source](http://webserver1.lsb.state.ok.us/cf_pdf/2019-20 FLR/HFLR/SB509 HFLR.PDF)
5. **Floor (Senate)** (committee substitute) — [source](http://webserver1.lsb.state.ok.us/cf_pdf/2019-20 FLR/SFLR/SB509 SFLR.PDF)
6. **SB509 (3-11-19) (RADER) FS FA1.PDF** (committee substitute) — [source](http://webserver1.lsb.state.ok.us/cf_pdf/2019-20 FLOOR AMENDMENTS/Senate/SB509 (3-11-19) (RADER) FS FA1.PDF)

## Votes

- THIRD READING — **43–0** (pass) · upper

## Sponsors

- Munson — primary (person)
- Rader — 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 Rader
- **2019-02-05** Second Reading referred to Retirement and Insurance `referral-committee, reading-2`
- **2019-02-05** Withdrawn from Retirement and Insurance committee
- **2019-02-05** Referred to Health and Human Services `referral-committee`
- **2019-02-05** Coauthored by Senator Smalley
- **2019-02-06** Coauthored by Senator Simpson
- **2019-02-06** Coauthored by Senator Young
- **2019-02-06** Coauthored by Senator Daniels
- **2019-02-07** Coauthored by Senator Hicks
- **2019-02-11** Coauthored by Senator McCortney
- **2019-02-12** Coauthored by Senator Floyd
- **2019-02-14** Coauthored by Senator Rosino
- **2019-02-14** Coauthored by Senator David
- **2019-02-18** Reported Do Pass Health and Human Services committee; CR filed `committee-passage`
- **2019-02-25** Coauthored by Representative Munson (principal House author)
- **2019-02-28** Coauthored by Senator Kidd
- **2019-03-12** General Order, Amended by Floor Substitute
- **2019-03-12** Measure passed: Ayes: 43 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 Health Services and Long-Term Care `referral-committee, reading-2`
- **2019-04-03** CR; Do Pass Health Services and Long-Term Care Committee `committee-passage`
- **2019-04-03** Coauthored by Representative(s) Dunnington, Roberts (Dustin), Mize, Bush, McEntire, Wallace, Echols, Blancett, Hilbert, Davis, Kannady, Conley, Miller, Caldwell (Trey), Dollens, Perryman, Bennett, Fetgatter, Frix, Dills, Lawson
- **2019-04-10** General Order
- **2019-04-10** Coauthored by Representative(s) Moore, Hasenbeck
- **2019-04-10** Third Reading, Measure passed: Ayes: 94 Nays: 0 `passage, reading-3`
- **2019-04-10** Signed, returned to Senate
- **2019-04-10** Referred for enrollment
- **2019-04-11** Enrolled, to House
- **2019-04-11** Signed, returned to Senate
- **2019-04-11** Sent to Governor `executive-receipt`
- **2019-04-16** Approved by Governor 04/16/2019 `executive-signature`

## Source

OpenStates / OpenCivicData bulk snapshot [2026-07-01](https://data.openstates.org/daily/2026-07-01/public.pgdump); origin `ocd-bill/e4cff582-aeee-4206-bf82-d3456dd4d1ca`. Confidence: reported (aggregated from official Oklahoma legislature records).