republic-os/legislation/us/states/mt/2023/sb-285.md

---
type: "Bill"
title: "Revise subdivision sanitation laws"
description: "Revise subdivision sanitation laws"
jurisdiction: "us/states/mt"
legislature: "Montana Legislature"
session: "2023"
identifier: "SB 285"
citation: "Montana SB 285 (2023)"
classification: ["bill"]
subjects: ["Environmental Protection"]
status: "enacted"
primary_sponsors: ["Carl Glimm"]
version_count: 11
action_count: 55
vote_count: 9
first_action: "2022-11-10T14:35:09+00:00"
last_action: "2023-05-22T19:58:12+00:00"
source: "openstates"
source_identifier: "ocd-bill/582f9314-1191-4b5e-bdbe-1111f4dbafe8"
source_url: "https://bills.legmt.gov/#/bill/20231/LC1042"
source_hash: "548f82b7bd9b9f19089cc9dd1aebf93c7e7d832f0386fde2cbef144409565ce5"
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 SB 285 (2023) — Revise subdivision sanitation laws

## Version chain

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

1. **SB0285.001.001_Amendments-in-Context_final-condensed.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=7129)
2. **SB0285.001.001_Amendments-in-Context_final-full.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=7132)
3. **SB0285.001.002_Amendments-in-Context_final-condensed.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=7130)
4. **SB0285.001.002_Amendments-in-Context_final-full.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=7131)
5. **SB0285.002.001.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=12197)
6. **SB0285.002.001_Amendments-in-Context_final-condensed.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=7133)
7. **SB0285.002.001_Amendments-in-Context_final-full.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=7128)
8. **SB0285_1.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=7054)
9. **SB0285_2.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=7053)
10. **SB0285_3.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=7055)
11. **SB0285_X.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=7052)

## Votes

- (S) 3rd Reading Passed — **27–23** (pass) · upper
- (H) Committee Executive Action--Bill Concurred as Amended — **10–5** (pass) · lower
- (S) 3rd Reading Passed as Amended by House — **33–16** (pass) · upper
- (H) 2nd Reading Concurred as Amended — **60–39** (pass) · lower
- (S) 2nd Reading Passed — **30–20** (pass) · upper
- (H) 3rd Reading Concurred — **61–32** (pass) · lower
- (H) 2nd Reading Motion to Amend Carried — **66–34** (pass) · lower
- (S) Committee Executive Action--Bill Passed — **6–3** (pass) · upper
- (S) 2nd Reading House Amendments Concurred — **35–15** (pass) · upper

## Sponsors

- Carl Glimm — primary (person)

## Timeline

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

- **2023-05-22T19:58:12+00:00** Chapter Number Assigned `became-law`
- **2023-05-22T15:18:00+00:00** (S) Signed by Governor `executive-signature`
- **2023-05-12T15:30:00+00:00** (S) Transmitted to Governor `executive-receipt`
- **2023-05-11T22:00:00+00:00** (H) Signed by Speaker `passage`
- **2023-05-04T17:00:00+00:00** (S) Signed by President `passage`
- **2023-05-03T19:49:02+00:00** (C) Printed - Enrolled Version Available `enrolled`
- **2023-05-03T19:49:01+00:00** (S) Returned from Enrolling
- **2023-05-02T18:36:04+00:00** (S) Sent to Enrolling
- **2023-05-01T19:25:00+00:00** (S) 3rd Reading Passed as Amended by House `passage, passage, reading-3, reading-3`
- **2023-05-01T19:00:00+00:00** (S) Scheduled for 3rd Reading `reading-3`
- **2023-04-29T15:53:00+00:00** (S) 2nd Reading House Amendments Concurred `amendment-amendment, amendment-passage, reading-2, reading-2`
- **2023-04-29T15:00:00+00:00** (S) Scheduled for 2nd Reading `reading-2`
- **2023-04-06T23:18:16+00:00** (H) Returned to Senate with Amendments
- **2023-04-06T22:15:00+00:00** (H) 3rd Reading Concurred `passage, reading-3`
- **2023-04-06T19:00:00+00:00** (H) Scheduled for 3rd Reading `reading-3`
- **2023-04-04T22:37:14+00:00** (C) Printed - New Version Available
- **2023-04-04T21:57:00+00:00** (H) 2nd Reading Concurred as Amended `reading-2, reading-2`
- **2023-04-04T21:52:00+00:00** (H) 2nd Reading Motion to Amend Carried `reading-2`
- **2023-04-04T19:00:01+00:00** (H) Scheduled for 2nd Reading `reading-2`
- **2023-03-30T19:34:40+00:00** (C) Printed - New Version Available
- **2023-03-30T19:25:00+00:00** (H) Committee Report--Bill Concurred as Amended
- **2023-03-29T21:00:00+00:00** (H) Committee Executive Action--Bill Concurred as Amended
- **2023-03-29T16:50:52+00:00** (C) Amendments Available
- **2023-03-27T21:00:00+00:00** (H) Hearing
- **2023-03-16T16:10:13+00:00** (H) Hearing Canceled
- **2023-03-16T16:01:04+00:00** (H) Hearing Canceled
- **2023-03-14T19:34:18+00:00** (H) First Reading `reading-1`
- **2023-03-14T01:09:20+00:00** (H) Referred to Committee `referral-committee`
- **2023-02-27T22:47:53+00:00** (S) Transmitted to House
- **2023-02-24T22:41:00+00:00** (S) 3rd Reading Passed `passage, reading-3`
- **2023-02-23T21:51:00+00:00** (S) 2nd Reading Passed `reading-2, reading-2`
- **2023-02-17T20:16:00+00:00** (S) Committee Report--Bill Passed `committee-passage`
- **2023-02-15T22:00:00+00:00** (S) Committee Executive Action--Bill Passed `committee-passage`
- **2023-02-13T22:00:13+00:00** (S) Hearing
- **2023-02-09T17:50:24+00:00** (S) Hearing Canceled
- **2023-02-08T14:33:49+00:00** (S) Referred to Committee `referral-committee`
- **2023-02-07T20:39:00+00:00** (S) First Reading `reading-1`
- **2023-02-07T16:44:45+00:00** (C) Introduced Bill Text Available Electronically
- **2023-02-07T15:52:19+00:00** (S) Introduced
- **2023-02-07T15:45:30+00:00** (C) Draft Delivered to Requester
- **2023-02-04T21:42:01+00:00** (C) Draft Ready for Delivery
- **2023-02-03T20:29:32+00:00** (C) Executive Director Final Review
- **2023-02-03T20:29:26+00:00** (C) Draft Ready for Delivery
- **2023-02-03T19:53:39+00:00** (C) Draft in Assembly
- **2023-02-03T16:46:11+00:00** (C) Executive Director Review
- **2023-02-03T03:49:11+00:00** (C) Bill Draft Text Available Electronically
- **2023-02-03T03:49:10+00:00** (C) Draft in Final Drafter Review
- **2023-02-02T23:09:27+00:00** (C) Draft in Input/Proofing
- **2023-02-02T17:01:15+00:00** (C) Draft to Drafter - Edit Review
- **2023-01-30T17:45:06+00:00** (C) Draft in Edit
- **2023-01-30T17:07:01+00:00** (C) Draft in Legal Review
- **2023-01-30T16:28:32+00:00** (C) Draft to Requester for Review
- **2023-01-28T22:20:26+00:00** (C) Draft to Requester for Review
- **2023-01-21T21:11:33+00:00** (C) Draft to Requester for Review
- **2022-11-10T14:35:09+00:00** (C) Draft Request Received `receipt`

## Source

OpenStates / OpenCivicData bulk snapshot [2026-07-01](https://data.openstates.org/daily/2026-07-01/public.pgdump); origin `ocd-bill/582f9314-1191-4b5e-bdbe-1111f4dbafe8`. Confidence: reported (aggregated from official Montana legislature records).