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Wilmington, DE Noise Ordinances: Aircraft Noise (2026)

Few Restrictions
Compiled from the official code textEditor Martyn O'NeillLast verified September 2026

Key Facts

Local decibel limit
None -- defers to federal/state law
Governing section
Wilmington City Code § 11-66(c)
Applies to
Aircraft and railroads citywide
Enforcement authority
FAA and Delaware, not city police

Summary

Wilmington's noise ordinance carves aircraft and railroad noise out of its citywide decibel limits, requiring only compliance with applicable federal and state noise regulations instead of a local dBA cap.

(c)Aircraft and railroad noise limits. All aircraft and railroads operating within the boundaries of the city shall comply with all applicable federal and state noise regulations.

View official code

Official source re-checked September 7, 2026: no newer edition of the code had been published (publisher’s edition: Code of Ordinances: Supplement 72).

Full Breakdown

City Code § 11-66, "Motor vehicles, aircraft and railroad noise levels," sets a vehicle-repair curfew and a state-law standard for cars, but subsection (c) treats planes and trains differently from the general noise article's ambient and leq limits in Sec. 11-65 (65 dBA daytime / 55 dBA nighttime in residence districts, etc.). Instead of imposing its own decibel ceiling on aircraft, the city simply requires that all aircraft operating within city boundaries comply with whatever federal and state noise regulations already apply: deferring the substantive standard to the FAA and Delaware regulators rather than setting one itself.

Violations & Fines

Sec. 11-66 sits inside Article III's penalty scheme (Sec. 11-59: $250-$1,000 first offense, up to $5,000 for repeat violations), but aircraft noise is measured and enforced under FAA and state standards, not by city sound-level meters or police.

Frequently Asked Questions

Does Wilmington set its own aircraft noise limits?
No. City Code § 11-66(c) requires aircraft to comply with "all applicable federal and state noise regulations" rather than the dBA caps that apply to other noise sources under Article III.
Who enforces aircraft noise complaints in Wilmington?
The FAA and Delaware's environmental regulators, since the city ordinance incorporates federal and state standards rather than creating its own local decibel limit for aircraft.

Sources & Official References

Other rules in Wilmington

Quiet HoursSome RestrictionsConstruction HoursSome RestrictionsParking Rules: RV & Boat ParkingSignificant RestrictionsAmplified Music & Outdoor SoundSignificant RestrictionsVehicle NoiseSome RestrictionsDecibel LimitsSome RestrictionsBarking DogsSome RestrictionsParking Rules: Curb Color RulesSome RestrictionsParking Rules: Commercial & Oversized VehiclesHeavy RestrictionsFence Regulations: Fence Permit RequirementsSome RestrictionsFence Regulations: Retaining WallsSome RestrictionsFire Regulations: FireworksSignificant Restrictions

All Wilmington rules

Compare Wilmington to another location·View the Delaware noise ordinances overview

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