# Montana SB 335: Generally revise laws related to dental insurance

Montana SB 335, Generally revise laws related to dental insurance, is a 69th Legislature, Regular Session (2025) Senate bill sponsored by Greg Hertz (Republican); status signed, last action 2025-05-16 (Chapter Number Assigned); PRIA reads it as touching household money (as of 2026-10-12).

- Canonical: https://policyrisk.com/state-bill/MT-SB335-2025
- As of: 2026-10-12
- Plain-text twin of the page above; the HTML and this file carry the same facts.

## Facts
- Bill: Montana SB 335
- State: Montana
- Session: 69th Legislature, Regular Session (2025)
- Title: Generally revise laws related to dental insurance
- Status: signed
- Chamber: Senate
- Introduced: 2025-02-17
- Last action: 2025-05-16, Chapter Number Assigned
- Sponsor: Greg Hertz (Republican)
- Cosponsors: 0
- Subjects: Health Care Services, Health, Insurance
- Touches household money: yes
- Roll calls: 6 (352 yes, 46 no in all)
- Economic provisions PRIA read: 4

## Summary

No summary available.

## Bill overview: provisions PRIA read

- Rebates or lower premiums when plans underspend: benefit, medium. Beginning June 1, 2025, the commissioner averages each plan’s dental loss ratio over three years by market segment. Plans more than one standard deviation below the segment average are outliers, unless within three percentage points of the average. The commissioner can investigate outliers and requ…
- Annual public reports on dental plans: benefit, low. Beginning June 1, 2025, dental insurers must file a dental loss ratio report by March 1 each year. Reports list enrollees, cost sharing, deductibles, annual maximums, and how many people hit the maximum. The commissioner publishes the data in a searchable format by January 1 of the following year.…
- How dental plans must count care spending: benefit, low. Beginning June 1, 2025, the dental loss ratio is the percent of premium spent on patient care. The numerator is clinical dental services, allowed quality-improvement activities, and other incurred claims. The denominator is premium revenue minus taxes, fees, nonprofit community benefit payments, an…
- Which dental plans these rules cover: benefit, low. The law creates the Montana Dental Insurance Transparency and Accountability Act. It covers standalone individual and group dental policies sold, issued, or renewed for Montana residents. It does not cover dental benefits embedded in Affordable Care Act health plans. It does not cover dental care p…

## Sponsors and cosponsors

- Sponsor: Greg Hertz (Republican), Senate

## Roll call votes

| Date | Chamber | Motion | Result | Yes | No | Other |
| --- | --- | --- | --- | --- | --- | --- |
| 2025-04-18 | Senate | Do Pass | pass | 46 | 4 |   |
| 2025-04-17 | Senate | Do Pass | pass | 49 | 0 |   |
| 2025-04-11 | House | Do Concur | pass | 99 | 1 |   |
| 2025-04-11 | House | Do Concur | pass | 99 | 0 |   |
| 2025-03-03 | Senate | Do Pass | pass | 28 | 22 |   |
| 2025-03-01 | Senate | Do Pass | pass | 31 | 19 |   |

## Actions (31)

- 2025-05-16: Chapter Number Assigned (Senate)
- 2025-05-13: Signed by Governor (Senate)
- 2025-05-05: Transmitted to Governor (Senate)
- 2025-05-05: Signed by Speaker (House)
- 2025-04-29: Signed by President (Senate)
- 2025-04-24: Returned from Enrolling (Senate)
- 2025-04-22: Sent to Enrolling (Senate)
- 2025-04-18: 3rd Reading House Amendments (Senate)
- 2025-04-17: 2nd Reading House Amendments (Senate)
- 2025-04-11: Returned to Senate with Amendments (House)
- 2025-04-11: 3rd Reading (House)
- 2025-04-11: 2nd Reading (House)
- 2025-04-10: Revised Fiscal Note Requested (Senate)
- 2025-04-09: Committee Report (House)
- 2025-04-09: Committee Executive Action (House)
- 2025-03-06: Hearing (House)
- 2025-03-04: 1st Reading (House)
- 2025-03-04: Referred to Committee (House)
- 2025-03-03: Transmitted to House (Senate)
- 2025-03-03: 3rd Reading (Senate)
- 2025-03-01: 2nd Reading (Senate)
- 2025-02-26: Committee Report (Senate)
- 2025-02-26: Committee Executive Action (Senate)
- 2025-02-25: Fiscal Note Printed (Senate)
- 2025-02-25: Fiscal Note Unsigned (Senate)
- 2025-02-25: Fiscal Note Received (Senate)
- 2025-02-21: Hearing (Senate)
- 2025-02-17: 1st Reading (Senate)
- 2025-02-17: Fiscal Note Requested (Senate)
- 2025-02-17: Referred to Committee (Senate)
- 2025-02-17: Introduced (Senate)

## Bill text

- Enrolled, 2025-04-22: [PDF](https://docs.legmt.gov/download-ticket?ticketId=31679526-47b2-48fb-b923-89624ffbbf4d)
- As Amended (Version 2), 2025-04-09: [PDF](https://docs.legmt.gov/download-ticket?ticketId=94c35b7a-1cb6-4086-b7d1-479b00d3daf8)
- Introduced, 2025-02-17: [PDF](https://docs.legmt.gov/download-ticket?ticketId=196197fa-a280-428a-bfb6-18d3e44cb82e)

## 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 422: Generally revise laws relating to insurance coverage relating to cancer (vetoed)
- SB 424: Revising the disabled veteran property tax assistance program (vetoed)

## Sources
- [Enrolled (PDF)](https://docs.legmt.gov/download-ticket?ticketId=31679526-47b2-48fb-b923-89624ffbbf4d)
- [As Amended (Version 2) (PDF)](https://docs.legmt.gov/download-ticket?ticketId=94c35b7a-1cb6-4086-b7d1-479b00d3daf8)
- [Introduced (PDF)](https://docs.legmt.gov/download-ticket?ticketId=196197fa-a280-428a-bfb6-18d3e44cb82e)

## 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 422: Generally revise laws relating to insurance coverage relating to cancer](https://policyrisk.com/state-bill/MT-SB422-2025)
- [SB 424: Revising the disabled veteran property tax assistance program](https://policyrisk.com/state-bill/MT-SB424-2025)
- [Montana bills](https://policyrisk.com/states/montana/bills)
- [Montana state hub](https://policyrisk.com/states/montana)
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Source: PRIA, https://policyrisk.com/state-bill/MT-SB335-2025 (as of 2026-10-12).
