An Airport/Facility Directory (AFD), now called a Chart Supplement US, is a listing of data on record with the FAA on all open-to-the-public airports, seaplane bases, heliports, military facilities and selected private use airports. These AFD's include airport sketches, NAVAIDs, communications data, weather data sources, airspace, special notices, VFR waypoints, Airport Diagrams and operational procedures. Seven volumes cover the conterminous United States, Puerto Rico, and the Virgin Islands. The AFD includes data that cannot be readily depicted in graphic form; e.g., airport hours of operation, types of fuel available, runway data, lighting codes, etc. Volumes are side-bound 5 3/8 × 8 1/4 inches.