---
type: "Bill"
title: "Generally revise laws on administration of MPERA retirement systems"
description: "Generally revise laws on administration of MPERA retirement systems"
jurisdiction: "us/states/mt"
legislature: "Montana Legislature"
session: "2021"
identifier: "HB 81"
citation: "Montana HB 81 (2021)"
classification: ["bill"]
subjects: ["Public Officers and Employees", "Retirement (see also: Senior Citizens)"]
status: "enacted"
primary_sponsors: ["Jim Hamilton"]
version_count: 3
action_count: 39
vote_count: 6
first_action: "2020-10-30"
last_action: "2021-04-12"
source: "openstates"
source_identifier: "ocd-bill/b9f9715e-fc2f-4799-9c33-94865e77501e"
source_url: "http://laws.leg.mt.gov/legprd/LAW0210W$BSIV.ActionQuery?P_BILL_NO1=81&P_BLTP_BILL_TYP_CD=HB&Z_ACTION=Find&P_SESS=20211"
source_hash: "aae541d7a103b8aaee5ebadb12701bd99c047a7ef042e967b4844e8b2a16c83d"
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 81 (2021) — Generally revise laws on administration of MPERA retirement systems

## Version chain

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

1. **HB0081_1.pdf** (committee substitute) — [source](https://leg.mt.gov/bills/2021/HB0099//HB0081_1.pdf)
2. **HB0081_X.pdf** (committee substitute) — [source](https://leg.mt.gov/bills/2021/HB0099//HB0081_X.pdf)
3. **Enrolled** (enrolled) — [source](https://leg.mt.gov/bills/2021/billpdf/HB0081.pdf)

## Votes

- Do Pass — **87–11** (pass) · lower
- Do Pass — **90–9** (pass) · lower
- Do Concur — **50–0** (pass) · upper
- DO PASS — **19–0** (pass) · lower
- Do Concur — **49–0** (pass) · upper
- BE CONCURRED IN — **8–0** (pass) · upper

## Sponsors

- Jim Hamilton — primary (person)

## Timeline

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

- **2020-10-30** Draft Request Received
- **2020-12-04** Draft in Legal Review
- **2020-12-07** Draft in Edit
- **2020-12-09** Draft to Drafter - Edit Review
- **2020-12-09** Draft in Input/Proofing
- **2020-12-12** Draft in Final Drafter Review
- **2020-12-12** Bill Draft Text Available Electronically
- **2020-12-14** Executive Director Review
- **2020-12-14** Draft in Assembly
- **2020-12-15** Introduced Bill Text Available Electronically
- **2020-12-15** Introduced `introduction`
- **2020-12-24** Referred to Committee - (H) State Administration `referral-committee`
- **2021-01-04** First Reading - (H) State Administration `reading-1`
- **2021-01-08** Hearing - (H) State Administration
- **2021-01-12** Committee Executive Action--Bill Passed - (H) State Administration `committee-passage`
- **2021-01-13** Committee Report--Bill Passed - (H) State Administration `committee-passage`
- **2021-01-15** Scheduled for 2nd Reading
- **2021-01-15** 2nd Reading Passed `reading-2`
- **2021-01-18** Scheduled for 3rd Reading
- **2021-01-18** 3rd Reading Passed `passage, reading-3`
- **2021-01-18** Transmitted to Senate
- **2021-01-19** First Reading `reading-1`
- **2021-01-19** Referred to Committee - (S) State Administration `referral-committee`
- **2021-03-15** Hearing - (S) State Administration
- **2021-03-15** Committee Executive Action--Bill Concurred - (S) State Administration
- **2021-03-16** Committee Report--Bill Concurred - (S) State Administration
- **2021-03-19** Scheduled for 2nd Reading
- **2021-03-19** 2nd Reading Concurred `reading-2`
- **2021-03-22** Scheduled for 3rd Reading
- **2021-03-22** 3rd Reading Concurred `passage, reading-3`
- **2021-03-22** Returned to House
- **2021-03-23** Sent to Enrolling
- **2021-03-27** Returned from Enrolling
- **2021-03-27** Printed - Enrolled Version Available
- **2021-03-31** Signed by Speaker
- **2021-04-01** Signed by President
- **2021-04-01** Transmitted to Governor `executive-receipt`
- **2021-04-11** Signed by Governor `executive-signature`
- **2021-04-12** 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/b9f9715e-fc2f-4799-9c33-94865e77501e`. Confidence: reported (aggregated from official Montana legislature records).