Chapter 20. Air Traffic Service Routes

1. Section 1. General
   • 20-1-1. PURPOSE
   • 20-1-2. CONTROLLED AIRSPACE
   • 20-1-3. DESIGNATION OF ATS ROUTES
   • 20-1-4. RESPONSIBILITIES
   • 20-1-5. ROUTE IDENTIFICATION
   • 20-1-6. BASE ALTITUDES
   • 20-1-7. MINIMUM EN ROUTE ALTITUDES
   • 20-1-8. PROCEDURAL REQUIREMENTS
   • 20-1-9. ACTION TO RAISE BASE OF TRANSITION AREAS
2. Section 2. Flight Inspection Requirements
   • 20-2-1. FLIGHT INSPECTION REQUESTS
   • 20-2-2. REQUEST FOR FLIGHT INSPECTION DATA
   • 20-2-3. FLIGHT INSPECTION REPORT
   • 20-2-4. FLIGHT INSPECTION DATA DISTRIBUTION
3. Section 3. Federal Airways
   • 20-3-1. DEFINITION
   • 20-3-2. NAVAID SPACING
   • 20-3-3. VERTICAL AND LATERAL EXTENT
   • 20-3-4. WIDTH REDUCTIONS
4. Section 4. Jet Routes
   • 20-4-1. DEFINITION
   • 20-4-2. NAVAID SPACING
   • 20-4-3. JET ROUTE WIDTH
5. Section 5. Area Navigation (RNAV) Routes
   • 20-5-1. PURPOSE
   • 20-5-2. RNAV ROUTE CRITERIA
   • 20-5-3. WAYPOINTS
   • 20-5-4. LATERAL PROTECTED AIRSPACE CRITERIA FOR RNAV EN ROUTE SEGMENTS
   • 20-5-5. RNAV ROUTE DESCRIPTIONS