Aviation Training Experts™

other

Aeronautical Chart Users’ Guide

FAA Chart Users’ Guide Version 9 July 2026
All Library Documents

IFR Enroute Low/High Altitude Symbols

IFR low- and high-altitude enroute chart legends, symbols, examples, and procedures.

MOCA of 13300’
MCA for aircraft traveling West along V520 to cross JAC at 15200’
MCA for aircraft traveling West along V330 to cross JAC at 13400’
MTA for aircraft crossing over and turning at JAC:
Aircraft traveling NE on V465 and turning to V330 on a W heading or turning to V520 on a W heading must turn at altitude of 16000’ or higher
Aircraft traveling E on V520 and turning to V330 on a W heading must turn at altitude of 14200’
Aircraft traveling E on V330 and turning to V520 on a W heading must turn at altitude of 16000’ or higher
Aircraft traveling NW on V328 and turning to V465 on a SW heading must turn at altitude of 15100’ or higher.
AIRSPACE INFORMATION (Continued) Enroute Chart Examples Low Enroute Chart (Continued) Reference Number 5 6 Description MEA VHF and RNAV Example MEA for aircraft utilizing VHF NAVAID of 15000’ MEA for aircraft utilizing RNAV of 13300’ MOCA of 13300’ MCA and MTA Example at a NAVAID MCA for aircraft traveling West along V520 to cross JAC at 15200’ MCA for aircraft traveling West along V330 to cross JAC at 13400’ MTA for aircraft crossing over and turning at JAC: Aircraft traveling NE on V465 and turning to V330 on a W heading or turning to V520 on a W heading must turn at altitude of 16000’ or higher Aircraft traveling E on V520 and turning to V330 on a W heading must turn at altitude of 14200’ Aircraft traveling E on V330 and turning to V520 on a W heading must turn at altitude of 16000’ or higher Aircraft traveling NW on V328 and turning to V465 on a SW heading must turn at altitude of 15100’ or higher.
Source page 87

Airspace Information (Continued)

FAA aeronautical chart visual associated with “High Enroute Chart example with numbered references” (source page 87).
High Enroute Chart example with numbered references — source page 87.
FAA aeronautical chart visual associated with “High RNAV route with MEA for DME/DME/IRU RNAV aircraft” (source page 87).
High RNAV route with MEA for DME/DME/IRU RNAV aircraft — source page 87.
FAA aeronautical chart visual associated with “Preferred directional jet route with time restrictions” (source page 87).
Preferred directional jet route with time restrictions — source page 87.
Airspace Information (Continued) Enroute Chart Examples High Enroute Chart 2 3 1 Reference Number 1 2 Description High RNAV Route with MEA for DME/DME/IRU RNAV Aircraft MEA of 24,000’ Preferred Directional Jet Route with Time Restrictions Jet Route 34 available between 1100 - 0300Z
Source page 88

AIRSPACE INFORMATION (Continued)

Enroute Chart Examples

FAA aeronautical chart visual associated with “Preferred directional jet route with time restrictions, MAA, and MEA” (source page 88).
Preferred directional jet route with time restrictions, MAA, and MEA — source page 88.

Preferred Directional Jet Route with Time Restrictions, MAA and MEA