---
type: "Bill"
title: "Revise renewable energy laws"
description: "Revise renewable energy laws"
jurisdiction: "us/states/mt"
legislature: "Montana Legislature"
session: "2021"
identifier: "HB 346"
citation: "Montana HB 346 (2021)"
classification: ["bill"]
subjects: ["Energy", "Revenue", "State", "Taxation (Generally)"]
status: "enacted"
primary_sponsors: ["Tom Welch"]
version_count: 4
action_count: 65
vote_count: 6
first_action: "2020-11-14"
last_action: "2021-04-16"
source: "openstates"
source_identifier: "ocd-bill/153073fb-e8df-4c66-a496-a159ea8142df"
source_url: "http://laws.leg.mt.gov/legprd/LAW0210W$BSIV.ActionQuery?P_BILL_NO1=346&P_BLTP_BILL_TYP_CD=HB&Z_ACTION=Find&P_SESS=20211"
source_hash: "a6b7cd0c32f8cb71341309818c8b3224a65faf3943dd2bd85358888d81d5da61"
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 346 (2021) — Revise renewable energy laws

## Version chain

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

1. **HB0346_1.pdf** (committee substitute) — [source](https://leg.mt.gov/bills/2021/HB0399//HB0346_1.pdf)
2. **HB0346_2.pdf** (committee substitute) — [source](https://leg.mt.gov/bills/2021/HB0399//HB0346_2.pdf)
3. **HB0346_X.pdf** (committee substitute) — [source](https://leg.mt.gov/bills/2021/HB0399//HB0346_X.pdf)
4. **Enrolled** (enrolled) — [source](https://leg.mt.gov/bills/2021/billpdf/HB0346.pdf)

## Votes

- DO PASS AS AMENDED — **12–0** (pass) · lower
- Do Concur — **50–0** (pass) · upper
- BE CONCURRED IN — **11–0** (pass) · upper
- Do Pass — **100–0** (pass) · lower
- Do Concur — **50–0** (pass) · upper
- Do Pass — **100–0** (pass) · lower

## Sponsors

- Tom Welch — primary (person)

## Timeline

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

- **2020-11-14** Draft Request Received
- **2020-12-08** Draft On Hold
- **2020-12-09** Draft Taken by Drafter
- **2020-12-21** Draft On Hold
- **2020-12-28** Draft to Requester for Review
- **2021-01-15** Draft in Legal Review
- **2021-01-15** Draft in Edit
- **2021-01-20** Draft to Drafter - Edit Review
- **2021-01-20** Draft in Input/Proofing
- **2021-01-20** Draft in Final Drafter Review
- **2021-01-20** Bill Draft Text Available Electronically
- **2021-01-20** Executive Director Review
- **2021-01-20** Draft in Assembly
- **2021-01-21** Draft Ready for Delivery
- **2021-01-21** Executive Director Final Review
- **2021-01-21** Draft Ready for Delivery
- **2021-01-29** Draft Back for Redo
- **2021-01-29** Draft in Legal Review
- **2021-01-29** Draft in Edit
- **2021-02-02** Draft to Drafter - Edit Review
- **2021-02-02** Draft in Input/Proofing
- **2021-02-02** Draft in Final Drafter Review
- **2021-02-02** Bill Draft Text Available Electronically
- **2021-02-02** Executive Director Review
- **2021-02-03** Draft in Assembly
- **2021-02-03** Draft Ready for Delivery
- **2021-02-03** Executive Director Final Review
- **2021-02-03** Draft Ready for Delivery
- **2021-02-08** Draft Delivered to Requester
- **2021-02-09** Introduced `introduction`
- **2021-02-09** Introduced Bill Text Available Electronically
- **2021-02-09** Fiscal Note Requested
- **2021-02-10** Referred to Committee - (H) Energy, Technology and Federal Relations `referral-committee`
- **2021-02-10** First Reading - (H) Energy, Technology and Federal Relations `reading-1`
- **2021-02-15** Fiscal Note Received
- **2021-02-16** Fiscal Note Signed
- **2021-02-16** Fiscal Note Printed
- **2021-02-17** Hearing - (H) Energy, Technology and Federal Relations
- **2021-02-19** Amendments Available
- **2021-02-19** Committee Executive Action--Bill Passed as Amended - (H) Energy, Technology and Federal Relations `committee-passage`
- **2021-02-22** Committee Report--Bill Passed as Amended - (H) Energy, Technology and Federal Relations `committee-passage`
- **2021-02-22** Printed - New Version Available
- **2021-03-09** Scheduled for 2nd Reading
- **2021-03-09** 2nd Reading Passed `reading-2`
- **2021-03-10** Scheduled for 3rd Reading
- **2021-03-10** 3rd Reading Passed `passage, reading-3`
- **2021-03-10** Transmitted to Senate
- **2021-03-11** First Reading `reading-1`
- **2021-03-11** Referred to Committee - (S) Taxation `referral-committee`
- **2021-03-16** Hearing - (S) Taxation
- **2021-03-19** Committee Executive Action--Bill Concurred - (S) Taxation
- **2021-03-19** Committee Report--Bill Concurred - (S) Taxation
- **2021-03-26** Scheduled for 2nd Reading
- **2021-03-26** 2nd Reading Concurred `reading-2`
- **2021-03-29** Scheduled for 3rd Reading
- **2021-03-29** 3rd Reading Concurred `passage, reading-3`
- **2021-03-29** Returned to House
- **2021-03-30** Sent to Enrolling
- **2021-03-31** Returned from Enrolling
- **2021-03-31** Printed - Enrolled Version Available
- **2021-04-07** Signed by Speaker
- **2021-04-08** Signed by President
- **2021-04-09** Transmitted to Governor `executive-receipt`
- **2021-04-16** Signed by Governor `executive-signature`
- **2021-04-16** 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/153073fb-e8df-4c66-a496-a159ea8142df`. Confidence: reported (aggregated from official Montana legislature records).