Hamilton board agrees to study dark-sky bylaw, add an action item to the master plan

Hamilton’s Planning Board voted to add study of a dark-sky bylaw to the town’s master plan after residents and board members debated whether to begin with voluntary guidelines or draft enforceable regulations.

Chair said staff had supplied sample language from Chelmsford and reminded the board of a public presentation by Kelly Beatty that is available online. Residents leading the initiative urged action to protect rural character, reduce glare and help wildlife, while board members said technical complexity favors starting with guidelines, then evaluating whether regulatory teeth are needed later.

"Lighting, electrification is only a 125 years old," said Kathy Simons, a resident who has organized with neighbors, arguing that light pollution affects migratory birds, pollinators and the town’s rural night-sky character and that shielding and phased exemptions can address public-safety and municipal needs.

Several members suggested the planning board begin with townwide guidance and targeted regulations in the town center, and to create an appendix or action-item list in the master plan so the topic can be refined over time. The board discussed examples from Chelmsford, Nantucket and other communities and the trade-offs between a general bylaw (50% vote at town meeting) and a zoning bylaw (two-thirds vote).

The board asked staff and volunteer organizers to draft an action-item entry in the master-plan chart format and to return with a proposed phrasing for formal consideration at a future meeting. No regulatory changes were enacted at this meeting; the board framed the decision as a directive to study the issue and engage stakeholders.