Massachusetts Coastal Zone Management Program (MGL c. 21A §4A) (MA)
Tracked preemption from the Massachusetts overlay bundle.
Overview
← All state preemptionsMassachusetts overlay roll-upMassachusetts zoning wikiMassachusetts building codesFederal overlaysGlossaryFederal-conflict: Yes
Effective
1978-06-01
Sunset
—
Authority
state
Scope
state:MA
Other Massachusetts preemptions
Massachusetts Chapter 40Y — Starter Home Zoning Districts (Opt-In)Massachusetts MBTA Communities Act — Multi-Family Zoning Requirement (MGL c. 40A §3A)Massachusetts Chapter 40S — Smart Growth School Cost ReimbursementMassachusetts Chapter 40R — Smart Growth Zoning Overlay District (Opt-In)Massachusetts Rivers Protection Act — Riverfront Area (MGL c. 131 §40)Boston Planning Department (former BPDA) Article 80 Development ReviewMassachusetts Outstanding Resource Waters & DCR Watershed ProtectionCape Cod Commission Regional Land Use Authority (St. 1989, c. 716)
Trigger predicate
When this evaluates true for a parcel, the law's preempted fields take precedence over base zoning.
parcel.within_massachusetts_coastal_zone == TruePreempted fields
2 fields on the base district schema are rewritten when the trigger fires.
| Field | Op | Value | Note |
|---|---|---|---|
review_type | require_additional | czm_federal_consistency_review | Federal-license / federal-funded activities within coastal zone require CZM federal consistency determination (CZMA §307) |
base_districts[*].allowed_uses | constrain | per_301_cmr_20_21_policies | CZM enforceable policies on water-dependent uses, public access, hazard areas, habitat, ports, ocean management |
Citation
Authority source
MGL c. 21A §4A; 301 CMR 20.00 (CZM Program); 301 CMR 21.00 (Ocean Management Plan); federal CZMA 16 USC §1451 et seq.
§ MGL c. 21A §4A
Research notes
Massachusetts Office of Coastal Zone Management (CZM) administers federally-approved coastal program covering 78 coastal communities from Salisbury to Westport plus Cape Cod and Islands. Boundary generally inland to first major land transportation route or 100 ft from ocean-influenced waters, whichever further. CZM policies are enforceable on state-licensed and federal activities through consistency review; not directly preemptive on local zoning but conditions Chapter 91 licenses (tidelands), DEP permits, MEPA review. Ocean Sanctuaries Act (MGL c. 132A §§13-16, 18) overlays four state ocean sanctuaries with additional siting prohibitions.