---
type: "Bill"
title: "Relating to Maternal Mortality and Morbidity Review Committee; and declaring an emergency."
description: "Establishes Maternal Mortality and Morbidity Review Committee to conduct studies and reviews of incidence of maternal mortality and severe maternal morbidity."
jurisdiction: "us/states/or"
legislature: "Oregon Legislative Assembly"
session: "2018 Regular Session"
identifier: "HB 4133"
citation: "Oregon HB 4133 (2018 Regular Session)"
classification: ["bill"]
subjects: []
status: "enacted"
primary_sponsors: ["Alissa Keny-Guyer", "Elizabeth Steiner Hayward", "Janelle Bynum", "Lew Frederick"]
version_count: 6
action_count: 23
vote_count: 4
first_action: "2018-01-22T18:07:03+00:00"
last_action: "2018-04-11T21:44:33+00:00"
source: "openstates"
source_identifier: "ocd-bill/d83fd63b-d14d-4912-a181-ab59fff5e38e"
source_url: "https://olis.leg.state.or.us/liz/2018R1/Measures/Overview/HB4133"
source_hash: "55981c91fa00b58170195f1bd224412284887e5bb68852ebcbfa3a1e71467943"
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-or"]
---

# Oregon HB 4133 (2018 Regular Session) — Relating to Maternal Mortality and Morbidity Review Committee; and declaring an emergency.

Establishes Maternal Mortality and Morbidity Review Committee to conduct studies and reviews of incidence of maternal mortality and severe maternal morbidity.

## Version chain

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

1. **House Amendments to Introduced** (filed) — [source](https://olis.leg.state.or.us/liz/2018R1/Downloads/MeasureDocument/HB4133/House Amendments to Introduced)
2. **Introduced** (filed) — [source](https://olis.leg.state.or.us/liz/2018R1/Downloads/MeasureDocument/HB4133/Introduced)
3. **A-Engrossed** (committee substitute) — [source](https://olis.leg.state.or.us/liz/2018R1/Downloads/MeasureDocument/HB4133/A-Engrossed)
4. **B-Engrossed** (committee substitute) — [source](https://olis.leg.state.or.us/liz/2018R1/Downloads/MeasureDocument/HB4133/B-Engrossed)
5. **House Amendments to A-Engrossed** (committee substitute) — [source](https://olis.leg.state.or.us/liz/2018R1/Downloads/MeasureDocument/HB4133/House Amendments to A-Engrossed)
6. **Enrolled** (enrolled) — [source](https://olis.leg.state.or.us/liz/2018R1/Downloads/MeasureDocument/HB4133/Enrolled)

## Votes

- Rules suspended. Third reading. Carried by Steiner Hayward. Passed. — **27–0** (pass) · legislature
- Heard and Reported Out with Amendments — **46–0** (pass) · legislature
- Heard and Reported Out with Amendments — **11–0** (pass) · legislature
- Rules suspended. Third reading. Carried by Keny-Guyer, Bynum. Passed. — **59–0** (pass) · legislature

## Sponsors

- Alissa Keny-Guyer — primary (person)
- Elizabeth Steiner Hayward — primary (person)
- Janelle Bynum — primary (person)
- Lew Frederick — primary (person)
- Andrea Salinas — cosponsor (person)
- Arnie Roblan — cosponsor (person)
- Betsy Johnson — cosponsor (person)
- Cedric Hayden — cosponsor (person)
- David Brock Smith — cosponsor (person)
- Diego Hernandez — cosponsor (person)
- Julie Parrish — cosponsor (person)
- Karin Power — cosponsor (person)
- Laurie Monnes Anderson — cosponsor (person)
- Michael Dembrow — cosponsor (person)
- Pam Marsh — cosponsor (person)
- Rob Wagner — cosponsor (person)
- Ron Noble — cosponsor (person)
- Sheri Malstrom — cosponsor (person)
- Tawna Sanchez — cosponsor (person)
- Teresa Alonso Leon — cosponsor (person)

## Timeline

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

- **2018-01-22T18:07:03+00:00** Presession Released to the Public.
- **2018-02-05T15:22:09+00:00** First reading. Referred to Speaker's desk. `introduction, reading-1, referral-committee`
- **2018-02-05T16:53:18+00:00** Referred to Health Care with subsequent referral to Ways and Means. `referral-committee`
- **2018-02-09T16:01:00+00:00** Public Hearing held.
- **2018-02-14T23:02:00+00:00** Work Session held.
- **2018-02-19T16:58:03+00:00** Recommendation: Do pass with amendments, be printed A-Engrossed, and be referred to Ways and Means by prior reference. `committee-passage-favorable`
- **2018-02-19T16:58:04+00:00** Referred to Ways and Means by prior reference. `referral-committee`
- **2018-02-23T18:47:00+00:00** Assigned to Subcommittee On Human Services. `referral-committee`
- **2018-02-26T16:33:00+00:00** Returned to Full Committee.
- **2018-02-26T16:32:00+00:00** Work Session held.
- **2018-03-01T00:02:00+00:00** Work Session held.
- **2018-03-01T18:08:40+00:00** Recommendation: Do pass with amendments and be printed B-Engrossed. `committee-passage-favorable`
- **2018-03-01T18:21:39+00:00** Second reading. `reading-2`
- **2018-03-02T00:35:56+00:00** Rules suspended. Third reading. Carried by Keny-Guyer, Bynum. Passed. `passage, reading-3`
- **2018-03-02T01:09:44+00:00** First reading. Referred to President's desk. `introduction, reading-1, referral-committee`
- **2018-03-02T01:15:54+00:00** Referred to Ways and Means. `referral-committee`
- **2018-03-02T20:20:13+00:00** Recommendation: Do pass the B-Eng. bill. `committee-passage-favorable`
- **2018-03-02T22:13:30+00:00** Second reading. `reading-2`
- **2018-03-02T23:12:36+00:00** Rules suspended. Third reading. Carried by Steiner Hayward. Passed. `passage, reading-3`
- **2018-03-07T00:24:00+00:00** Speaker signed. `passage`
- **2018-03-08T18:22:19+00:00** President signed. `passage`
- **2018-04-03T20:09:37+00:00** Governor signed. `executive-signature`
- **2018-04-11T21:44:33+00:00** Chapter 63, (2018 Laws): Effective date April 3, 2018.

## Source

OpenStates / OpenCivicData bulk snapshot [2026-07-01](https://data.openstates.org/daily/2026-07-01/public.pgdump); origin `ocd-bill/d83fd63b-d14d-4912-a181-ab59fff5e38e`. Confidence: reported (aggregated from official Oregon legislature records).