---
type: "Bill"
title: "Requiring drain plugs to be disengaged to prevent aquatic invasive species"
description: "Requiring drain plugs to be disengaged to prevent aquatic invasive species"
jurisdiction: "us/states/mt"
legislature: "Montana Legislature"
session: "2021"
identifier: "HB 152"
citation: "Montana HB 152 (2021)"
classification: ["bill"]
subjects: ["Crimes", "Environmental Protection", "Fish and Wildlife", "Recreation/Parks/Sports", "Traffic Regulations (see also: Motor Vehicles)", "Transportation (see also: Motor Vehicles; Taxation--Transportation)"]
status: "enacted"
primary_sponsors: ["Neil Duram"]
version_count: 4
action_count: 47
vote_count: 6
first_action: "2020-12-13"
last_action: "2021-04-14"
source: "openstates"
source_identifier: "ocd-bill/48e73931-f357-4583-8afb-80287984f24c"
source_url: "http://laws.leg.mt.gov/legprd/LAW0210W$BSIV.ActionQuery?P_BILL_NO1=152&P_BLTP_BILL_TYP_CD=HB&Z_ACTION=Find&P_SESS=20211"
source_hash: "5bd6eea2fce7ec0eaad52dd873e1a2bb6f7f1ec6f11beac4d916fdead9fc2a8d"
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 152 (2021) — Requiring drain plugs to be disengaged to prevent aquatic invasive species

## Version chain

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

1. **HB0152_1.pdf** (committee substitute) — [source](https://leg.mt.gov/bills/2021/HB0199//HB0152_1.pdf)
2. **HB0152_2.pdf** (committee substitute) — [source](https://leg.mt.gov/bills/2021/HB0199//HB0152_2.pdf)
3. **HB0152_X.pdf** (committee substitute) — [source](https://leg.mt.gov/bills/2021/HB0199//HB0152_X.pdf)
4. **Enrolled** (enrolled) — [source](https://leg.mt.gov/bills/2021/billpdf/HB0152.pdf)

## Votes

- Do Pass — **100–0** (pass) · lower
- Do Concur — **46–4** (pass) · upper
- Do Concur — **47–3** (pass) · upper
- DO PASS AS AMENDED — **14–1** (pass) · lower
- Do Pass — **100–0** (pass) · lower
- BE CONCURRED IN — **12–0** (pass) · upper

## Sponsors

- Neil Duram — primary (person)

## Timeline

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

- **2020-12-13** Draft Request Received
- **2020-12-19** Draft to Requester for Review
- **2021-01-01** Draft in Legal Review
- **2021-01-02** Draft in Edit
- **2021-01-06** Draft to Drafter - Edit Review
- **2021-01-06** Draft in Input/Proofing
- **2021-01-07** Draft in Final Drafter Review
- **2021-01-07** Bill Draft Text Available Electronically
- **2021-01-07** Executive Director Review
- **2021-01-07** Draft in Assembly
- **2021-01-08** Draft Ready for Delivery
- **2021-01-08** Executive Director Final Review
- **2021-01-08** Draft Ready for Delivery
- **2021-01-11** Introduced `introduction`
- **2021-01-11** Introduced Bill Text Available Electronically
- **2021-01-12** Referred to Committee - (H) Natural Resources `referral-committee`
- **2021-01-12** First Reading `reading-1`
- **2021-01-18** Hearing - (H) Natural Resources
- **2021-02-01** Tabled in Committee - (H) Natural Resources `amendment-deferral`
- **2021-02-13** Amendments Available
- **2021-02-15** Taken from Table in Committee - (H) Natural Resources
- **2021-02-17** Committee Executive Action--Bill Passed as Amended - (H) Natural Resources `committee-passage`
- **2021-02-18** Committee Report--Bill Passed as Amended - (H) Natural Resources `committee-passage`
- **2021-02-18** Printed - New Version Available
- **2021-02-22** Scheduled for 2nd Reading
- **2021-02-22** 2nd Reading Passed `reading-2`
- **2021-02-23** Scheduled for 3rd Reading
- **2021-02-23** 3rd Reading Passed `passage, reading-3`
- **2021-02-23** Transmitted to Senate
- **2021-02-24** First Reading `reading-1`
- **2021-02-24** Referred to Committee - (S) Natural Resources `referral-committee`
- **2021-03-10** Hearing - (S) Natural Resources
- **2021-03-17** Committee Executive Action--Bill Concurred - (S) Natural Resources
- **2021-03-18** Committee Report--Bill Concurred - (S) Natural Resources
- **2021-03-24** Scheduled for 2nd Reading
- **2021-03-24** 2nd Reading Concurred `reading-2`
- **2021-03-25** Scheduled for 3rd Reading
- **2021-03-25** 3rd Reading Concurred `passage, reading-3`
- **2021-03-25** Returned to House
- **2021-03-26** Sent to Enrolling
- **2021-03-30** Returned from Enrolling
- **2021-03-30** Printed - Enrolled Version Available
- **2021-04-01** Signed by Speaker
- **2021-04-06** Signed by President
- **2021-04-06** Transmitted to Governor `executive-receipt`
- **2021-04-14** Signed by Governor `executive-signature`
- **2021-04-14** 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/48e73931-f357-4583-8afb-80287984f24c`. Confidence: reported (aggregated from official Montana legislature records).