Seattle–Tacoma International Airport (secure airfield and TSA zones)

Seattle–Tacoma International Airport (SEA) is the region's primary commercial airport and includes federally regulated secure areas. Airfield ramps, aircraft parking areas, control towers, and landside zones beyond TSA passenger checkpoints are restricted to credentialed workers and authorized personnel. Security and access controls at these operational areas are managed by the Port of Seattle in coordination with TSA, FAA, and other federal agencies.