Environmental Rules in Cambridge, MA (2026)
5 verified environmental rules for Cambridge, Massachusetts, sourced directly from the municipal code and official government pages.
Verified from official government sources
Stormwater Management
No one may excavate, connect to, alter or otherwise use Cambridge's wastewater or stormwater drainage system without a written permit from the Commissioner of Public Works, per Municipal Code § 13.16.020. New discharges or changes in effluent volume need 45 days' advance notice before work begins.
Cambridge Stormwater Drain Connection Rules
Significant RestrictionsCambridge Municipal Code § 13.16.020 (Wastewater System and Stormwater Drainage System connection - General regulations)
B.No unauthorized Person or Owner shall uncover, excavate over, block access to, make any connection with or opening into, alter or disturb, or in any way directly or indirectly use the City's Wastewater system or Stormwater Drainage System or appurtenance thereof without first obtaining a written permit from the Commissioner. Any person proposing a new discharge into the system or in any way c...
Flood Zones
Cambridge participates in the National Flood Insurance Program and enforces a Flood Plain Overlay District covering FEMA Special Flood Hazard Areas along the Charles River and Alewife Brook.
Cambridge FEMA Flood Zone and Floodplain Overlay
Heavy RestrictionsMass. Gen. Laws ch. 131, § 40 (Wetlands Protection Act — Flood Plain and Wetlands Activities)
Section 40. No person shall remove, fill, dredge or alter any bank, riverfront area, fresh water wetland, coastal wetland, beach, dune, flat, marsh, meadow or swamp bordering on the ocean or on any estuary, creek, river, stream, pond, or lake, or any land under said waters or any land subject to tidal action, coastal storm flowage, or flooding, other than in the course of maintaining, repairing...
Boat Dock Permits
In Cambridge's Open Space District, boat docks are not allowed by right. The Zoning Ordinance's Table of Use Regulations permits them only as a Commercial Recreation use approved by Special Permit from the Planning Board, alongside golf courses and yacht clubs or marinas.
Cambridge Boat Dock Special Permit
Significant RestrictionsCambridge Zoning Ordinance, Table of Use Regulations, Note 11 (Section 4.35i)
In an Open Space district the following Commercial Recreation uses only shall be permitted, by Special Permit: a golf course; yacht club or marina; boat docks, ticket offices and other support facilities for ferry services, boat rentals and boat cruises services. [Section 4.35i]
Vehicle Idling Restrictions
Cambridge doesn't write its own idling clock into the General Code: state law already caps unnecessary engine idling at five minutes. Municipal Code Section 10.17.100, part of the city's 1992 vehicle trip-reduction ordinance, orders the Police Department to actively enforce that state cap on buses, trucks, taxis and automobiles and report back to the City Manager.
Cambridge Vehicle Idling Enforcement Rules
Light RestrictionsCambridge Municipal Code § 10.17.100
The Police Department shall promptly review and improve its enforcement of the statutory prohibitions against idling by busses, trucks and taxis and automobiles set forth at G.L., ch. 90, § 16A. Within two months of the effective date of the ordinance codified in this provision, the Commissioner of the Police Department shall report to the City Manager on the Department's implementation of this...
Flood Elevation Requirements
Cambridge builds to its own forward-looking flood standard instead of just FEMA's historical base flood elevation. The City Engineer sets parcel-by-parcel Long-Term Flood Elevations under Zoning Ordinance Section 22.83, projecting climate-driven flood risk roughly 50 years out.
Cambridge Flood Elevation Standards
Some RestrictionsCambridge Zoning Ordinance § 22.83.1 (Flood Elevation Standards, Promulgation), Supp. No. 6
The City Engineer shall promulgate, and shall revise from time to time, the projected elevations of future flood risk due to certain types and probabilities of flood events for every lot in the City of Cambridge. The resulting projected elevations are referred to herein as Long-Term Flood Elevations ("LTFEs")... LTFEs shall be based on an approximately 50-year projection from the time of promul...