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Drone Rules for Three Mile Island

Dauphin County, Pennsylvania (PA) • United States
Three Mile Island, Londonderry Township, PA, USA
Lat: 40.1479 • Lng: -76.7235
Ground Not allowed Last updated: May 30, 2026
Summary
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Three Mile Island Nuclear Generating Station (currently relicensing as TMI-2) is protected by NRC regulations prohibiting all drone operations. The site remains under federal nuclear security jurisdiction.

Drone Rules - Three Mile Island Nuclear Station

All drone operations are prohibited within Three Mile Island's NRC-regulated security zone under 10 CFR Part 73.

Airspace / Site Context

  • Harrisburg International Airport (KMDT) Class C lies ~10 miles SE
  • Plant sits on an island in the Susquehanna River near Middletown, PA
  • Unit 1 is being refurbished for restart; construction activity adds safety concerns
  • Site gained historical significance after 1979 accident; security posture reflects this

Key Rules

  • NRC security plan prohibits any UAS within the protected area perimeter
  • Harrisburg Class C LAANC required for Part 107 operations in the region
  • Pennsylvania state law 18 Pa. C.S. 3505 prohibits UAS over critical infrastructure
  • River-based drone launches also covered under NRC security perimeter

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