# Montana SB 355: Generally revise energy laws

Montana SB 355, Generally revise energy laws, is a 69th Legislature, Regular Session (2025) Senate bill sponsored by Wylie Galt (Republican); status signed, last action 2025-05-08 (Chapter Number Assigned) (as of 2026-10-19).

- Canonical: https://policyrisk.com/state-bill/MT-SB355-2025
- As of: 2026-10-19
- Plain-text twin of the page above; the HTML and this file carry the same facts.

## Facts
- Bill: Montana SB 355
- State: Montana
- Session: 69th Legislature, Regular Session (2025)
- Title: Generally revise energy laws
- Status: signed
- Chamber: Senate
- Introduced: 2025-02-18
- Last action: 2025-05-08, Chapter Number Assigned
- Sponsor: Wylie Galt (Republican)
- Cosponsors: 2
- Subjects: Energy, Utilities
- Touches household money: no
- Roll calls: 4 (297 yes, 2 no in all)
- Economic provisions PRIA read: 2

## Summary

No summary available.

## Bill overview: provisions PRIA read

- Co-ops get key transmission rights: mixed, medium. The law defines an incumbent electric utility as an electric cooperative that had transmission facilities on or before January 1, 2017. It excludes public utilities regulated by the Public Service Commission. Incumbent co-ops can build, own, and maintain a new transmission line on or after January…
- Competitive bidding for big power lines: mixed, low. For any new transmission project worth $8 million or more, the incumbent must run a competitive bid. The incumbent and its affiliates can bid. The bid must follow the incumbent’s reasonable timelines, specs, and standards. If a non‑incumbent wins, the incumbent may inspect the work. When constructi…

## Sponsors and cosponsors

- Sponsor: Wylie Galt (Republican), Senate
- Cosponsor: Bob Carter (Democrat), House
- Cosponsor: Daniel Zolnikov (Republican), Senate

## Roll call votes

| Date | Chamber | Motion | Result | Yes | No | Other |
| --- | --- | --- | --- | --- | --- | --- |
| 2025-04-11 | House | Do Concur | pass | 98 | 1 |   |
| 2025-04-10 | House | Do Concur | pass | 99 | 1 |   |
| 2025-03-04 | Senate | Do Pass | pass | 50 | 0 |   |
| 2025-03-03 | Senate | Do Pass | pass | 50 | 0 |   |

## Actions (25)

- 2025-05-08: Chapter Number Assigned (Senate)
- 2025-05-05: Signed by Governor (Senate)
- 2025-04-25: Transmitted to Governor (Senate)
- 2025-04-25: Signed by Speaker (House)
- 2025-04-21: Signed by President (Senate)
- 2025-04-12: Returned from Enrolling (Senate)
- 2025-04-11: Sent to Enrolling (Senate)
- 2025-04-11: 3rd Reading (House)
- 2025-04-10: 2nd Reading (House)
- 2025-03-29: Committee Report (House)
- 2025-03-28: Committee Executive Action (House)
- 2025-03-24: Hearing (House)
- 2025-03-24: Hearing Canceled (House)
- 2025-03-20: Hearing (House)
- 2025-03-06: 1st Reading (House)
- 2025-03-05: Referred to Committee (House)
- 2025-03-04: Transmitted to House (Senate)
- 2025-03-04: 3rd Reading (Senate)
- 2025-03-03: 2nd Reading (Senate)
- 2025-02-28: Committee Report (Senate)
- 2025-02-27: Committee Executive Action (Senate)
- 2025-02-25: Hearing (Senate)
- 2025-02-21: Referred to Committee (Senate)
- 2025-02-19: 1st Reading (Senate)
- 2025-02-18: Introduced (Senate)

## Bill text

- Enrolled, 2025-04-12: [PDF](https://docs.legmt.gov/download-ticket?ticketId=4dc550e9-16a1-421e-8bc0-bf0616c7ddbe)
- Introduced, 2025-02-18: [PDF](https://docs.legmt.gov/download-ticket?ticketId=63393c8d-9913-477a-a39c-b8f52760de75)

## Related bills

- SB 437: Revise definition of sex in Montana law (signed)
- HB 831: Increase elderly homeowner and renter income tax credit (vetoed)
- HB 628: Revise early literacy targeted intervention laws (vetoed)
- SB 410: Provide for Montana genomic security act (vetoed)
- SB 424: Revising the disabled veteran property tax assistance program (vetoed)
- SB 422: Generally revise laws relating to insurance coverage relating to cancer (vetoed)

## Sources
- [Enrolled (PDF)](https://docs.legmt.gov/download-ticket?ticketId=4dc550e9-16a1-421e-8bc0-bf0616c7ddbe)
- [Introduced (PDF)](https://docs.legmt.gov/download-ticket?ticketId=63393c8d-9913-477a-a39c-b8f52760de75)

## Related
- [SB 437: Revise definition of sex in Montana law](https://policyrisk.com/state-bill/MT-SB437-2025)
- [HB 831: Increase elderly homeowner and renter income tax credit](https://policyrisk.com/state-bill/MT-HB831-2025)
- [HB 628: Revise early literacy targeted intervention laws](https://policyrisk.com/state-bill/MT-HB628-2025)
- [SB 410: Provide for Montana genomic security act](https://policyrisk.com/state-bill/MT-SB410-2025)
- [SB 424: Revising the disabled veteran property tax assistance program](https://policyrisk.com/state-bill/MT-SB424-2025)
- [SB 422: Generally revise laws relating to insurance coverage relating to cancer](https://policyrisk.com/state-bill/MT-SB422-2025)
- [Montana bills](https://policyrisk.com/states/montana/bills)
- [Montana state hub](https://policyrisk.com/states/montana)
- [All state legislation](https://policyrisk.com/state-bills)

Source: PRIA, https://policyrisk.com/state-bill/MT-SB355-2025 (as of 2026-10-19).