Municipalities have an important role to play in protecting Vermont’s dark skies. Municipal plans, bylaws, subdivision regulations, site plan standards, public-facility decisions, and capital investments can all help reduce glare, light trespass, sky glow, and wasted energy while preserving safety, visibility, scenic character, and the nighttime environment.
This page is intended as a practical resource for towns, villages, planners, conservation commissions, development review bodies, and other local leaders who want to strengthen municipal policy on outdoor lighting and dark skies.
Statewide Municipal Plan Review
DarkSky Vermont has now completed a statewide review of Vermont municipal plans for explicit dark-sky and outdoor-lighting policy language. The review covered 256 municipalities and 247 plans reviewed.
The results show that while a small number of municipalities have adopted strong and useful language, most plans still do not contain clear, specific dark-sky or outdoor-lighting policy language. The review also suggests that plan language is uneven and inconsistent across regions, pointing to an important opportunity for greater coherence in municipal planning.
Regional Planning Commissions are well positioned to help municipalities incorporate clearer, more consistent language on outdoor lighting, glare, scenic character, habitat impacts, and energy waste while still adapting that language to local conditions. A more coherent regional approach could help towns avoid starting from scratch and support more effective follow-through in bylaws, subdivision regulations, capital planning, and public facility decisions.
At the same time, Vermont already has workable examples. Stronger language already exists in some plans, and those examples can help inform a Vermont best-practice model for municipal plan language—one that supports greater consistency across regions while still allowing towns to adapt it to local conditions.
See the statewide results, rating system, and highlighted model municipalities:
[View the Statewide Municipal Plan Review →]
Why Municipal Policy Matters
Municipal plans help establish policy direction. Clear plan language can support later work on:
- zoning and unified development bylaws
- subdivision standards
- site plan review
- scenic resource protection
- habitat and wildlife protection
- energy-saving measures
- capital planning and public-facility upgrades
Where municipal plans are silent, those next steps are often harder to justify, coordinate, and carry through.
What Good Municipal Policy Can Address
Strong municipal policy on outdoor lighting and dark skies can help communities address:
- glare, which can reduce visibility rather than improve it
- light trespass, where unwanted light spills onto neighboring properties
- sky glow, which diminishes the night sky and obscures stars
- energy waste, from lighting that is brighter or more extensive than needed
- scenic and community character, especially in rural areas
- wildlife and habitat impacts, including effects on nocturnal species
- public health and quality of life
- public-facility design and replacement decisions
Municipal policy does not need to prohibit lighting. It should encourage lighting that is necessary, appropriately designed, and used wisely.
Core Principles for Municipal Policy
Municipal language will vary by community, but effective policies often reflect a few basic principles:
- light only where it is needed
- use no more light than necessary
- direct light downward and keep it shielded
- avoid unnecessary blue-rich light
- limit glare, trespass, and unnecessary night lighting
- encourage controls such as timers, dimmers, and motion sensors
- connect lighting decisions to scenic character, energy efficiency, and stewardship
These principles can be reflected at different levels, from general municipal plan policy language to more specific bylaw and design-standard provisions.
A Practical Path for Municipalities
Communities do not need to solve everything at once. A practical approach may include:
1. Start with the municipal plan
Include clear policy language recognizing the value of dark skies and the importance of reducing glare, light trespass, sky glow, and wasteful lighting.
2. Build the bridge to implementation
Where appropriate, connect plan language to later work in bylaws, subdivision regulations, site plan standards, public-project design, and municipal facility upgrades.
3. Use Vermont examples
Draw from municipalities that already have stronger language in place rather than starting from scratch.
4. Adapt to local conditions
A compact village center, rural hill town, and growing regional service center may not use identical language, but all can adopt clearer and more intentional policy.
Current guidance resources
The statewide survey is now complete, but additional work remains to distill those findings into a fuller Vermont best-practice framework. In the meantime, the most useful starting points include:
DarkSky Outdoor Lighting Code Templates
DarkSky International provides code templates intended to help U.S. municipalities and states develop outdoor-lighting laws and codes that improve lighting quality and reduce light pollution.
DarkSky describes these templates as a starting point that communities can modify to suit local needs, and recommends consulting lighting-design professionals to help ensure effective implementation.
Outdoor Lighting Manual for Vermont Municipalities
The Outdoor Lighting Manual for Vermont Municipalities is an older Vermont-specific resource prepared by the Chittenden County Regional Planning Commission. While it should not be treated as the final word on current best practices, it remains a useful local reference and background resource for Vermont communities.
How DarkSky Vermont Can Help
DarkSky Vermont is working to identify strong municipal examples, encourage more consistent policy language, and develop practical best-practice guidance for Vermont communities.
We are especially interested in working with:
- municipalities updating their plans
- Regional Planning Commissions
- conservation commissions and planning commissions
- local boards considering public-facility lighting decisions
- community members seeking practical model language