The Washington State Department of Transportation (WSDOT) Aviation is responsible for protecting and preserving Washington State’s 139 public use general aviation airports. Airports are a vital part of the communities they serve and are an important part of Washington State’s transportation system.

• WSDOT Aviation 07 -09 Business Directions (pdf 44 kb)
  
•  Aviation Presentations
• Aviation Information Clearinghouse
  Find information on anything Aviation-related from Airlines to Weather.
• Washington State Airport Reference Guide
  
• Economic Impacts of Washington Airports
• Aviation Law
• Airport Stormwater Guidance Manual  
• Aviation Stimulus Projects 
• Northwest Regional Air Service Initiative

• Aviation Advisory Committee