Northampton's lighting code was approved in 2006 and applies to all new private development projects. It was fairly standard for its time, but now it's overdue to be updated, especially since LEDs, which have changed outdoor lighting so dramatically, are not even mentioned in the code. Enforcement of the code is also uneven at best -- for example, the light shown above does not comply, but was approved by the city.
On Sept. 3, 2020, the Northampton City Council unanimously endorsed a resolution in support of the twin statewide "Dark Sky Bills" (current versions: S.2147 and H.3306). Copies of the resolution were sent to our representatives in the state legislature, the relevant committee chairs, and Governor Baker.