Zoning › State preemptions › Maryland

Maryland Aviation — BWI Marshall Compatible Use Overlay & Airport Zoning (MD)

Tracked preemption from the Maryland overlay bundle.

Overview

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Effective
1958-07-01
Sunset
—
Authority
state
Scope
state:MD
Other Maryland preemptions
Maryland Land Use Article — Zoning & Planning Enabling AuthorityMaryland Historic District Enabling Authority (LU §8-201)Maryland Military Installation Joint Land Use Studies (LU §22-301)Atlantic Coastal Bays Critical Area — Worcester County OverlayMaryland Priority Funding Areas (PFA) — Smart Growth ActMaryland Rural Legacy Program — Designated Rural Legacy AreasMaryland Forest Conservation Act (FCA)Maryland Wetlands of Special State Concern (WSSC) & Nontidal Wetlands

Trigger predicate

When this evaluates true for a parcel, the law's preempted fields take precedence over base zoning.

AND
  • city.near_public_airport == True
  • OR
    • parcel.in_airport_safety_zone == True
    • parcel.in_airport_noise_contour_65db == True
    • parcel.in_bwi_noise_zone == True
    • parcel.geometry geographic match

Preempted fields

2 fields on the base district schema are rewritten when the trigger fires.

FieldOpValueNote
base_districts[*].max_height_ftcap_atfaa_part77_horizontal_surface_elevationBuilding heights effectively capped by FAA Part 77 imaginary-surface elevations; Maryland Aviation Administration (MAA) operates the BWI Noise Zone in Anne Arundel County restricting residential uses within the 65+ dB DNL contour.
review_typeaddairport_zoning_board_or_maa_reviewLocalities surrounding public-use airports may establish Airport Zoning Boards to administer height-limit and use-compatibility overlays. BWI-Marshall is governed by the Maryland Aviation Administration with the BWI Compatible Land Use Plan (2017) and the BWI Noise Zone in surrounding Anne Arundel County jurisdictions.

Citation

Authority source
Md. Code Ann., Transportation §§5-401 through 5-426 (Aviation; Airport Zoning); LU §10-201 (airport-zoning enabling for local jurisdictions)
§ Transp. §§5-401 through 5-426; LU §10-201
https://mgaleg.maryland.gov/mgawebsite/Laws/StatuteText?article=gtr§ion=5-401

Research notes

Maryland hosts one major commercial airport (BWI-Marshall, MAA-operated), one major federal airport adjacent (Reagan National DCA across the river), and a network of GA airports (Frederick Municipal FDK, Easton ESN, Hagerstown HGR, Salisbury-Wicomico SBY, St. Mary's County 2W6, Tipton TIP, Martin State MTN). MAA administers the BWI Noise Zone in concert with Anne Arundel County under the BWI Compatible Land Use Plan. Federal conflict check: FAA Part 77 (objects affecting navigable airspace), FAR Part 150 noise compatibility, and 14 CFR §157 notice requirements apply in parallel.