---
type: "Bill"
title: "Repeal mercury thermostat collection act"
description: "Repeal mercury thermostat collection act"
jurisdiction: "us/states/mt"
legislature: "Montana Legislature"
session: "2025"
identifier: "HB 26"
citation: "Montana HB 26 (2025)"
classification: ["bill"]
subjects: ["Environmental Protection"]
status: "enacted"
primary_sponsors: ["Becky Edwards"]
version_count: 17
action_count: 35
vote_count: 6
first_action: "2024-10-09T20:09:44+00:00"
last_action: "2025-05-08T14:41:40+00:00"
source: "openstates"
source_identifier: "ocd-bill/f250f2a6-9a85-495c-a401-8ace59ba388a"
source_url: "https://bills.legmt.gov/#/laws/bill/2/LC0542?open_tab=sum"
source_hash: "2097fe4ddf9d88f0420965f3f47ec16cbdaef3c5ab5dc4c2465c52ea7eab5c3c"
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 26 (2025) — Repeal mercury thermostat collection act

## Version chain

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

1. **HB0026_1(1).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=273225)
2. **HB0026_1(2).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=273539)
3. **HB0026_1(3).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=275436)
4. **HB0026_1(4).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=276484)
5. **HB0026_1(5).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=307652)
6. **HB0026_1(6).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=309565)
7. **HB0026_1(7).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=309568)
8. **HB0026_1.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=267217)
9. **HB0026_X(1).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=316957)
10. **HB0026_X(2).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=320530)
11. **HB0026_X(3).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=322029)
12. **HB0026_X(4).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=322030)
13. **HB0026_X(5).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=322031)
14. **HB0026_X(6).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=324783)
15. **HB0026_X(7).pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=325800)
16. **HB0026_X.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=311063)
17. **LC0542.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=265652)

## Votes

- Do Concur — **46–4** (pass) · upper
- Do Pass — **99–0** (pass) · lower
- Do Concur — **42–8** (pass) · upper
- do_pass — **14–0** (pass) · lower
- Do Pass — **98–1** (pass) · lower
- be_concurred_in — **11–0** (pass) · upper

## Sponsors

- Becky Edwards — primary (person)

## Timeline

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

- **2024-10-09T20:09:44+00:00** (LC) Drafter Assigned
- **2024-10-24T18:56:07+00:00** (LC) Draft in Legal Review
- **2024-10-29T17:32:23+00:00** (LC) Draft in Edit
- **2024-11-01T18:29:23+00:00** (LC) Draft in Input/Proofing
- **2024-11-12T20:54:36+00:00** (LC) Draft in Final Drafter Review
- **2024-11-17T18:10:04+00:00** (LC) Draft in Assembly
- **2024-11-18T22:21:41+00:00** (LC) Draft Ready for Delivery
- **2024-12-06T21:58:01+00:00** (LC) Draft Delivered to Requester
- **2024-12-06T21:59:00+00:00** (H) Introduced
- **2024-12-20T22:11:12+00:00** (H) Referred to Committee - (H) Natural Resources `referral-committee`
- **2025-01-06T17:27:00+00:00** (H) First Reading `reading-1`
- **2025-01-07T01:13:00+00:00** (H) Hearing - (H) Natural Resources
- **2025-01-16T00:35:22+00:00** (H) Committee Executive Action--Bill Passed - (H) Natural Resources `committee-passage`
- **2025-01-16T20:16:44+00:00** (H) Committee Report--Bill Passed - (H) Natural Resources `committee-passage`
- **2025-01-20T20:00:00+00:00** (H) Scheduled for 2nd Reading `reading-2`
- **2025-01-20T20:25:00+00:00** (H) 2nd Reading Passed `reading-2, reading-2`
- **2025-01-21T20:00:00+00:00** (H) Scheduled for 3rd Reading `reading-3`
- **2025-01-21T21:21:00+00:00** (H) 3rd Reading Passed `passage, reading-3`
- **2025-01-21T21:48:46+00:00** (H) Transmitted to Senate
- **2025-01-22T20:35:27+00:00** (S) First Reading `reading-1`
- **2025-02-04T17:47:10+00:00** (S) Referred to Committee - (S) Natural Resources `referral-committee`
- **2025-04-03T01:36:03+00:00** (S) Hearing - (S) Natural Resources
- **2025-04-09T23:35:38+00:00** (S) Committee Executive Action--Bill Concurred - (S) Natural Resources
- **2025-04-10T17:03:00+00:00** (S) Committee Report--Bill Concurred - (S) Natural Resources
- **2025-04-11T16:00:00+00:00** (S) Scheduled for 2nd Reading `reading-2`
- **2025-04-11T16:58:00+00:00** (S) 2nd Reading Concurred `reading-2, reading-2`
- **2025-04-12T15:00:00+00:00** (S) Scheduled for 3rd Reading `reading-3`
- **2025-04-12T20:55:00+00:00** (S) 3rd Reading Concurred `passage, reading-3`
- **2025-04-12T20:55:22+00:00** (H) Sent to Enrolling
- **2025-04-15T06:03:42+00:00** (H) Returned from Enrolling
- **2025-04-23T23:30:28+00:00** (H) Signed by Speaker `passage`
- **2025-04-25T20:15:22+00:00** (S) Signed by President `passage`
- **2025-04-25T21:32:14+00:00** (H) Transmitted to Governor `executive-receipt`
- **2025-05-05T18:37:31+00:00** (H) Signed by Governor `executive-signature`
- **2025-05-08T14:41:40+00:00** 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/f250f2a6-9a85-495c-a401-8ace59ba388a`. Confidence: reported (aggregated from official Montana legislature records).