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Issue · Bedford, MA

Dark Sky Outdoor Lighting Bylaw

Potential new regulations on outdoor lighting to reduce light pollution may apply to commercial, industrial, multi-family, or residential properties.

Overview

The Planning Board is exploring a Dark Sky outdoor lighting bylaw to curb light pollution. Two meetings have framed the central question of whether rules should apply to residential properties or be limited to commercial and municipal sites. No draft has yet been prepared for Town Meeting.

Background

The Dark Sky Outdoor Lighting Bylaw first surfaced as a formal agenda item during the Planning Board's May 26, 2026 meeting when staff presented examples of lighting regulations from Maynard and Chelmsford. Board members examined how such bylaws address glare, color temperature, and light trespass, while debating the appropriate reach of any new rules.

Discussion centered on whether enforcement should target only commercial, industrial, and multi-family properties or extend to single-family homes. Several residents voiced support for beginning with municipal and commercial sites to build acceptance before considering broader application.

At the June 9, 2026 meeting the board revisited the topic after receiving an email summary from the Chelmsford Planning Board Chair describing that town's experience. The Chair expressed a preference for a bylaw covering both residential and commercial properties yet emphasized the need for continued public input.

No formal vote or draft language has been introduced. The board has instead treated the matter as an ongoing placeholder, with one member designated to lead research and outreach aimed at a possible Town Meeting proposal in fall 2026 or spring 2027.

How it unfolded
Staff presented lighting bylaw examples from neighboring towns; board discussed residential versus commercial scope and voiced general support for a staged approach beginning with municipal and commercial properties.
2026-05-26Planning Board
Board reviewed email from Chelmsford Planning Board Chair and revisited scope question; Chair stated preference for covering both residential and commercial areas while remaining open to public feedback.
2026-06-09Planning Board
Arguments in favor
Regulations can manage glare, color temperature, and light trespass using proven models from Maynard and Chelmsford.
planning-board 2026-05-26
For
A staged rollout starting with municipal and commercial properties allows the concept to gain acceptance before wider application.
planning-board 2026-05-26
For
Commercial plazas could be required to turn off lights after midnight to reduce unnecessary illumination.
planning-board 2026-05-26
For
Arguments against
Enforcement on individual residential properties would be difficult and potentially over-regulatory.
planning-board 2026-05-26
Against
New rules could conflict with existing regulations in historic districts.
planning-board 2026-05-26
Against
Residential floodlights used for guests or safety needs should remain exempt from restrictions.
planning-board 2026-05-26
Against
Key voices
“Offered to lead the initiative, review the model Dark Sky bylaw, research neighboring towns, and conduct public engagement toward a Town Meeting proposal.”
Speaker Pplanning-board 2026-05-26
“Expressed preference for a bylaw covering both residential and commercial areas but remains open to public feedback.”
Speaker R / Chairplanning-board 2026-06-09
“Suggested larger residential developments might be a better target for compliance than individual homes.”
Residentplanning-board 2026-05-26
What's next

Speaker R will follow up with the Chelmsford Board Chair; Speaker P will continue research and public engagement toward a possible proposal in Fall 2026 or Spring 2027.

dark skylightinglight pollution