Produced by the FAA’s Aeronautical Information Services branch, the Aeronautical Chart User’s Guide explains all the symbology for FAA sectional, terminal area, flyway planning, helicopter route, enroute low- and high-altitude, and oceanic route charts, as well as standard terminal arrival routes, standard instrument departures, and instrument approach procedures, according to ASA officials.
Source: general aviationASA releases latest edition of Aeronautical Chart User’s Guide