# Dark Sky Law: Montana

Montana has no statewide outdoor lighting, light pollution, or dark-sky statute. Several cities regulate fixture shielding and glare through their own zoning codes instead.

**Status:** no-statewide-law (checked 2026-09-23)
Montana has no statewide outdoor lighting, light pollution, or dark-sky statute. Several cities regulate fixture shielding and glare through their own zoning codes instead.

## Municipal codes
- [Missoula](https://www.ci.missoula.mt.us/DocumentCenter/View/587/Lighting-Ordinance-Number-3341): City lighting ordinance (No. 3341) sets shielding and glare standards for new outdoor fixtures.
- [Whitefish](https://codelibrary.amlegal.com/codes/whitefishmt/latest/whitefish_mt/0-0-0-5322): Municipal code section 11-3-25 sets outdoor lighting standards for new development.
- [Great Falls](https://library.municode.com/mt/great_falls/codes/code_of_ordinances?nodeId=TIT17LADECO_CH40OULI_17.40.060SPSTSPAP): Code chapter 40 regulates outdoor lighting, including special standards for special applications.
- [Livingston](https://library.municode.com/mt/livingston/codes/code_of_ordinances?nodeId=CH18NISKPRAC): Code chapter 18, locally titled the "Night Sky Protection Act," regulates outdoor lighting fixtures citywide.
- [Kalispell](https://ecode360.com/42633667): Municipal code sets outdoor lighting standards for commercial and residential fixtures.

## Sources
- https://www.ci.missoula.mt.us/DocumentCenter/View/587/Lighting-Ordinance-Number-3341
- https://codelibrary.amlegal.com/codes/whitefishmt/latest/whitefish_mt/0-0-0-5322
- https://library.municode.com/mt/great_falls/codes/code_of_ordinances?nodeId=TIT17LADECO_CH40OULI_17.40.060SPSTSPAP
- https://library.municode.com/mt/livingston/codes/code_of_ordinances?nodeId=CH18NISKPRAC
- https://ecode360.com/42633667

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Canonical: https://darkskiesdirectory.com/laws/MT