---
type: "Bill"
title: "Interim study of private ponds"
description: "Interim study of private ponds"
jurisdiction: "us/states/mt"
legislature: "Montana Legislature"
session: "2023"
identifier: "HB 520"
citation: "Montana HB 520 (2023)"
classification: ["bill"]
subjects: ["Appropriations (see also: State Finance)", "Economic Development", "Environmental Protection", "Legislature", "Statutory", "Interim Studies"]
status: "enacted"
primary_sponsors: ["Denley Loge"]
version_count: 13
action_count: 65
vote_count: 10
first_action: "2022-11-10T22:31:39+00:00"
last_action: "2023-05-22T18:52:06+00:00"
source: "openstates"
source_identifier: "ocd-bill/be8feba1-3a2d-4afa-bb64-f4fd315b56f3"
source_url: "https://bills.legmt.gov/#/bill/20231/LC1062"
source_hash: "9280050d86aac668c6316dc0b2d6f213feb04d25166a684ebb18917bdeda6290"
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 520 (2023) — Interim study of private ponds

## Version chain

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

1. **HB0520.001.001_Amendments-in-Context_final-condensed.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=8456)
2. **HB0520.001.001_Amendments-in-Context_final-full.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=8452)
3. **HB0520.001.002_Amendments-in-Context_final-condensed.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=8454)
4. **HB0520.001.002_Amendments-in-Context_final-full.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=8449)
5. **HB0520.001.003_combo_final-condensed.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=8453)
6. **HB0520.001.003_combo_final-full.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=8450)
7. **HB0520.002.001_Amendments-in-Context_final-condensed.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=8448)
8. **HB0520.002.001_Amendments-in-Context_final-full.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=8451)
9. **HB0520_1.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=8459)
10. **HB0520_2.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=8460)
11. **HB0520_3.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=8462)
12. **HB0520_X.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=8461)
13. **HB520.1.1-Apr3.pdf** (committee substitute) — [source](https://api.legmt.gov/docs/v1/documents/getContent?documentId=8455)

## Votes

- (H) 3rd Reading Passed — **75–23** (pass) · lower
- (H) 2nd Reading Senate Amendments Concurred — **84–16** (pass) · lower
- (S) 2nd Reading Concurred — **31–19** (pass) · upper
- (S) Committee Executive Action--Bill Concurred as Amended — **11–0** (pass) · upper
- (H) 2nd Reading Passed — **70–30** (pass) · lower
- (H) Committee Executive Action--Bill Passed — **17–6** (pass) · lower
- (H) Committee Executive Action--Bill Passed — **15–0** (pass) · lower
- (S) 3rd Reading Concurred — **29–21** (pass) · upper
- (H) 3rd Reading Passed as Amended by Senate — **74–22** (pass) · lower
- (S) Committee Executive Action--Bill Concurred as Amended — **10–9** (pass) · upper

## Sponsors

- Denley Loge — primary (person)

## Timeline

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

- **2023-05-22T18:52:06+00:00** Chapter Number Assigned `became-law`
- **2023-05-22T17:26:00+00:00** (H) Signed by Governor `executive-signature`
- **2023-05-12T17:30:00+00:00** (H) Transmitted to Governor `executive-receipt`
- **2023-05-11T23:00:00+00:00** (S) Signed by President `passage`
- **2023-05-11T18:00:00+00:00** (H) Signed by Speaker `passage`
- **2023-05-09T15:03:46+00:00** (C) Printed - Enrolled Version Available `enrolled`
- **2023-05-09T15:03:45+00:00** (H) Returned from Enrolling
- **2023-05-05T20:00:02+00:00** (H) Sent to Enrolling
- **2023-05-02T18:22:00+00:00** (H) 3rd Reading Passed as Amended by Senate `passage, passage, reading-3, reading-3`
- **2023-05-02T14:00:00+00:00** (H) Scheduled for 3rd Reading `reading-3`
- **2023-05-01T20:44:00+00:00** (H) 2nd Reading Senate Amendments Concurred `amendment-amendment, amendment-passage, reading-2, reading-2`
- **2023-05-01T20:30:00+00:00** (H) Scheduled for 2nd Reading `reading-2`
- **2023-04-28T22:02:54+00:00** (S) Returned to House with Amendments
- **2023-04-27T19:37:00+00:00** (S) 3rd Reading Concurred `passage, reading-3`
- **2023-04-27T19:00:00+00:00** (S) Scheduled for 3rd Reading `reading-3`
- **2023-04-27T18:41:00+00:00** (H) Revised Fiscal Note Printed
- **2023-04-27T17:38:35+00:00** (H) Revised Fiscal Note Signed
- **2023-04-26T22:33:37+00:00** (H) Revised Fiscal Note Received `receipt`
- **2023-04-26T20:49:00+00:00** (S) 2nd Reading Concurred `reading-2, reading-2`
- **2023-04-26T20:00:00+00:00** (S) Scheduled for 2nd Reading `reading-2`
- **2023-04-25T21:46:59+00:00** (C) Printed - New Version Available
- **2023-04-25T19:36:00+00:00** (S) Committee Report--Bill Concurred as Amended
- **2023-04-21T21:00:00+00:00** (S) Committee Executive Action--Bill Concurred as Amended
- **2023-04-19T22:30:00+00:00** (S) Hearing
- **2023-04-19T21:27:00+00:00** (S) Rereferred to Committee `referral-committee, referral-committee`
- **2023-04-14T19:10:00+00:00** (S) Committee Report--Bill Concurred as Amended
- **2023-04-14T18:47:46+00:00** (C) Printed - New Version Available
- **2023-04-12T21:00:00+00:00** (S) Committee Executive Action--Bill Concurred as Amended
- **2023-04-05T13:54:29+00:00** (C) Amendments Available
- **2023-03-29T21:00:00+00:00** (S) Hearing
- **2023-03-21T19:22:00+00:00** (S) First Reading `reading-1`
- **2023-03-21T18:59:07+00:00** (S) Referred to Committee `referral-committee`
- **2023-03-21T14:17:09+00:00** (H) Transmitted to Senate
- **2023-03-20T19:37:00+00:00** (H) 3rd Reading Passed `passage, reading-3`
- **2023-03-16T20:39:00+00:00** (H) Committee Report--Bill Passed `committee-passage`
- **2023-03-16T14:00:01+00:00** (H) Committee Executive Action--Bill Passed `committee-passage`
- **2023-03-16T14:00:00+00:00** (H) Hearing
- **2023-03-10T23:00:00+00:00** (H) Rereferred to Committee `referral-committee, referral-committee`
- **2023-03-10T22:50:00+00:00** (H) 2nd Reading Passed `reading-2, reading-2`
- **2023-02-21T20:15:00+00:00** (H) Committee Report--Bill Passed `committee-passage`
- **2023-02-20T23:32:00+00:00** (H) Committee Executive Action--Bill Passed `committee-passage`
- **2023-02-20T22:00:49+00:00** (H) Hearing
- **2023-02-20T18:37:24+00:00** (H) Fiscal Note Printed
- **2023-02-17T23:45:37+00:00** (H) Fiscal Note Signed
- **2023-02-17T21:53:23+00:00** (H) Fiscal Note Received `receipt`
- **2023-02-15T20:19:17+00:00** (H) First Reading `reading-1`
- **2023-02-15T19:23:00+00:00** (H) Referred to Committee `referral-committee`
- **2023-02-14T17:38:46+00:00** (C) Introduced Bill Text Available Electronically
- **2023-02-13T20:26:24+00:00** (H) Fiscal Note Requested
- **2023-02-13T20:25:16+00:00** (H) Introduced
- **2023-02-13T17:04:08+00:00** (C) Draft Delivered to Requester
- **2023-02-10T22:40:16+00:00** (C) Draft Ready for Delivery
- **2023-02-10T21:00:21+00:00** (C) Executive Director Final Review
- **2023-02-10T21:00:13+00:00** (C) Draft Ready for Delivery
- **2023-02-10T20:49:02+00:00** (C) Draft in Assembly
- **2023-02-10T16:48:49+00:00** (C) Executive Director Review
- **2023-02-09T22:21:51+00:00** (C) Bill Draft Text Available Electronically
- **2023-02-09T22:21:50+00:00** (C) Draft in Final Drafter Review
- **2023-02-09T21:02:43+00:00** (C) Draft in Input/Proofing
- **2023-02-08T23:05:20+00:00** (C) Draft to Drafter - Edit Review
- **2023-02-04T21:49:08+00:00** (C) Draft in Edit
- **2023-02-04T20:27:18+00:00** (C) Draft in Legal Review
- **2023-01-29T00:16:42+00:00** (C) Draft to Requester for Review
- **2023-01-23T20:27:00+00:00** (C) Draft On Hold
- **2022-11-10T22:31:39+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/be8feba1-3a2d-4afa-bb64-f4fd315b56f3`. Confidence: reported (aggregated from official Montana legislature records).