---
type: "Bill"
title: "Revise Libby asbestos superfund laws"
description: "Revise Libby asbestos superfund laws"
jurisdiction: "us/states/mt"
legislature: "Montana Legislature"
session: "2019"
identifier: "HB 30"
citation: "Montana HB 30 (2019)"
classification: ["bill"]
subjects: ["Environmental Protection", "Legislature"]
status: "enacted"
primary_sponsors: ["Steve Gunderson"]
version_count: 3
action_count: 42
vote_count: 6
first_action: "2018-09-17"
last_action: "2019-03-21"
source: "openstates"
source_identifier: "ocd-bill/e6266310-7964-41e8-b1f1-7dba2f546e68"
source_url: "http://laws.leg.mt.gov/legprd/LAW0210W$BSIV.ActionQuery?P_BILL_NO1=30&P_BLTP_BILL_TYP_CD=HB&Z_ACTION=Find&P_SESS=20191"
source_hash: "4c18d816f9a123ae26c6ca7db857ed330d1ce4a92a4b44cd89628846d4c773a6"
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 30 (2019) — Revise Libby asbestos superfund laws

## Version chain

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

1. **HB0030_1.pdf** (committee substitute) — [source](https://leg.mt.gov/bills/2019/HB0099//HB0030_1.pdf)
2. **HB0030_x.pdf** (committee substitute) — [source](https://leg.mt.gov/bills/2019/HB0099//HB0030_x.pdf)
3. **Enrolled** (enrolled) — [source](http://leg.mt.gov/bills/2019/billpdf/HB0030.pdf)

## Votes

- Do Pass — **100–0** (pass) · lower
- BE CONCURRED IN — **12–0** (pass) · upper
- Do Concur — **44–0** (pass) · upper
- Do Concur — **50–0** (pass) · upper
- Do Pass — **100–0** (pass) · lower
- DO PASS — **15–0** (pass) · lower

## Sponsors

- Steve Gunderson — primary (person)

## Timeline

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

- **2018-09-17** Draft Request Received
- **2018-11-12** Draft to Requester for Review
- **2018-11-12** Draft in Legal Review
- **2018-11-13** Draft in Edit
- **2018-11-16** Draft to Drafter - Edit Review [CMD]
- **2018-11-16** Draft in Input/Proofing
- **2018-11-29** Draft in Final Drafter Review
- **2018-11-29** Bill Draft Text Available Electronically
- **2018-11-29** Executive Director Review
- **2018-11-29** Draft in Assembly
- **2018-12-04** Pre-Introduction Letter Sent
- **2018-12-05** Introduced `introduction`
- **2018-12-05** Introduced Bill Text Available Electronically
- **2018-12-07** Referred to Committee `referral-committee`
- **2019-01-07** First Reading `reading-1`
- **2019-01-10** Hearing Canceled
- **2019-01-28** Hearing
- **2019-02-01** Committee Executive Action--Bill Passed `committee-passage`
- **2019-02-04** Committee Report--Bill Passed `committee-passage`
- **2019-02-06** Scheduled for 2nd Reading
- **2019-02-06** 2nd Reading Passed `reading-2`
- **2019-02-07** Scheduled for 3rd Reading
- **2019-02-07** 3rd Reading Passed `passage, reading-3`
- **2019-02-07** Transmitted to Senate
- **2019-02-08** First Reading `reading-1`
- **2019-02-08** Referred to Committee `referral-committee`
- **2019-02-20** Hearing
- **2019-02-25** Committee Executive Action--Bill Concurred
- **2019-02-26** Committee Report--Bill Concurred
- **2019-03-09** Scheduled for 2nd Reading
- **2019-03-09** 2nd Reading Concurred `reading-2`
- **2019-03-11** Scheduled for 3rd Reading
- **2019-03-11** 3rd Reading Concurred `passage, reading-3`
- **2019-03-11** Returned to House
- **2019-03-12** Sent to Enrolling
- **2019-03-13** Returned from Enrolling
- **2019-03-13** Printed - Enrolled Version Available
- **2019-03-15** Signed by Speaker
- **2019-03-18** Signed by President
- **2019-03-19** Transmitted to Governor `executive-receipt`
- **2019-03-20** Signed by Governor `executive-signature`
- **2019-03-21** Chapter Number Assigned

## Source

OpenStates / OpenCivicData bulk snapshot [2026-07-01](https://data.openstates.org/daily/2026-07-01/public.pgdump); origin `ocd-bill/e6266310-7964-41e8-b1f1-7dba2f546e68`. Confidence: reported (aggregated from official Montana legislature records).