---
type: "Bill"
title: "Revise workers' compensation laws relating to prosthetic devices"
description: "Revise workers' compensation laws relating to prosthetic devices"
jurisdiction: "us/states/mt"
legislature: "Montana Legislature"
session: "2021"
identifier: "HB 446"
citation: "Montana HB 446 (2021)"
classification: ["bill"]
subjects: ["Workers' Compensation (see also: Labor and Employment)"]
status: "enacted"
primary_sponsors: ["Ron Marshall"]
version_count: 3
action_count: 48
vote_count: 6
first_action: "2019-12-17"
last_action: "2021-04-14"
source: "openstates"
source_identifier: "ocd-bill/17ed98dc-2dc9-4e68-a3a9-1be5f3fab18c"
source_url: "http://laws.leg.mt.gov/legprd/LAW0210W$BSIV.ActionQuery?P_BILL_NO1=446&P_BLTP_BILL_TYP_CD=HB&Z_ACTION=Find&P_SESS=20211"
source_hash: "1a2c200c5783eb45480aae26659ccf3ad68c75baa589d554ec6c4d8807fe48dc"
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-mt"]
---

# Montana HB 446 (2021) — Revise workers' compensation laws relating to prosthetic devices

## Version chain

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

1. **HB0446_1.pdf** (committee substitute) — [source](https://leg.mt.gov/bills/2021/HB0499//HB0446_1.pdf)
2. **HB0446_X.pdf** (committee substitute) — [source](https://leg.mt.gov/bills/2021/HB0499//HB0446_X.pdf)
3. **Enrolled** (enrolled) — [source](https://leg.mt.gov/bills/2021/billpdf/HB0446.pdf)

## Votes

- Do Concur — **28–22** (pass) · upper
- BE CONCURRED IN — **7–4** (pass) · upper
- Do Pass — **66–33** (pass) · lower
- DO PASS — **14–6** (pass) · lower
- Do Concur — **29–21** (pass) · upper
- Do Pass — **67–33** (pass) · lower

## Sponsors

- Ron Marshall — primary (person)

## Timeline

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

- **2019-12-17** Draft Request Received
- **2021-01-26** Draft to Requester for Review
- **2021-02-09** Draft in Legal Review
- **2021-02-09** Draft in Edit
- **2021-02-11** Draft to Drafter - Edit Review
- **2021-02-12** Draft in Input/Proofing
- **2021-02-12** Draft in Final Drafter Review
- **2021-02-12** Bill Draft Text Available Electronically
- **2021-02-12** Executive Director Review
- **2021-02-12** Draft in Assembly
- **2021-02-13** Draft Ready for Delivery
- **2021-02-13** Executive Director Final Review
- **2021-02-15** Draft Ready for Delivery
- **2021-02-16** Draft Delivered to Requester
- **2021-02-17** Introduced `introduction`
- **2021-02-17** Introduced Bill Text Available Electronically
- **2021-02-17** Referred to Committee - (H) Business and Labor `referral-committee`
- **2021-02-17** First Reading `reading-1`
- **2021-02-17** Fiscal Note Requested
- **2021-02-24** Hearing - (H) Business and Labor
- **2021-02-26** Fiscal Note Received
- **2021-02-26** Fiscal Note Signed
- **2021-02-26** Fiscal Note Printed
- **2021-02-26** Committee Executive Action--Bill Passed - (H) Business and Labor `committee-passage`
- **2021-02-26** Committee Report--Bill Passed - (H) Business and Labor `committee-passage`
- **2021-03-01** Scheduled for 2nd Reading
- **2021-03-01** 2nd Reading Passed `reading-2`
- **2021-03-02** Scheduled for 3rd Reading
- **2021-03-02** 3rd Reading Passed `passage, reading-3`
- **2021-03-02** Transmitted to Senate
- **2021-03-08** First Reading `reading-1`
- **2021-03-08** Referred to Committee - (S) Business, Labor, and Economic Affairs `referral-committee`
- **2021-03-16** Hearing - (S) Business, Labor, and Economic Affairs
- **2021-03-17** Committee Executive Action--Bill Concurred - (S) Business, Labor, and Economic Affairs
- **2021-03-17** Committee Report--Bill Concurred - (S) Business, Labor, and Economic Affairs
- **2021-03-23** Scheduled for 2nd Reading
- **2021-03-23** 2nd Reading Concurred `reading-2`
- **2021-03-24** Scheduled for 3rd Reading
- **2021-03-24** 3rd Reading Concurred `passage, reading-3`
- **2021-03-24** Returned to House
- **2021-03-25** Sent to Enrolling
- **2021-03-31** Returned from Enrolling
- **2021-03-31** Printed - Enrolled Version Available
- **2021-04-01** Signed by Speaker
- **2021-04-06** Signed by President
- **2021-04-06** Transmitted to Governor `executive-receipt`
- **2021-04-14** Signed by Governor `executive-signature`
- **2021-04-14** Chapter Number Assigned `became-law`

## Source

OpenStates / OpenCivicData bulk snapshot [2026-07-01](https://data.openstates.org/daily/2026-07-01/public.pgdump); origin `ocd-bill/17ed98dc-2dc9-4e68-a3a9-1be5f3fab18c`. Confidence: reported (aggregated from official Montana legislature records).