U.S. DEPARTMENT OF TRANSPORTATION FEDERAL AVIATION ADMINISTRATION
Chapter 20. Air Navigational Routes
Section 1. General
20-1-1. Purpose
20-1-2. Controlled Airspace
20-1-3. When To Designate Air Navigational Routes
20-1-4. Responsibilities
20-1-5. Route Identification
Section 2. Flight Inspection Requirements
20-2-1. Request for Flight Inspection Data
20-2-2. Flight Inspection Data Distribution
Section 3. Low/Medium Frequency and VOR Airways
20-3-1. NAVAID Spacing
20-3-2. Vertical and Lateral Extent
Section 4. Jet Routes
20-4-1. Designation
20-4-2. NAVAID Spacing
Section 5. Area Navigation Routes
20-5-1. Discussion
20-5-2. Waypoint Criteria