AIRSPACE INFORMATION (Continued) Description Enroute Chart Examples High Enroute Chart (Continued) Reference Number 82 FAA Chart Users’ Guide - IFR Enroute Symbology Directional Jet Route with Time Restrictions, MAA and  MEA Jet Route 149 available between 1100 - 0300Z MAA - 41,000’ MEA - 31,000’ 3 AIRSPACE BOUNDARIES LOW / HIGH CHARTS Air Defense Identification Zone (ADIZ) CAN ADA ADIZ ALASKA ADIZ Adjoining ADIZ Air Traffic Service LOW / HIGH CHARTS Identification Data Ceiling Floor Call Sign Frequency Ceiling Floor Call Sign Frequency Flight Information Regions (FIR) LOW / HIGH CHARTS Upper Information  Regions (UIR)  Upper Control Areas (UTA) LOW / HIGH CHARTS Air Route Traffic   Control Center (ARTCC) ARTCC Remoted Sites with  discrete VHF and UHF frequencies Air Route Traffic Control Center  (ARTCC) with Controller Pilot  Data Link Communications (CPDLC)  Altimeter Setting Change  LOW / HIGH CHARTS Control Areas (CTA) Adjoining CTA Additional Control Areas LOW ALTITUDE HIGH ALTITUDE ARTCC Name Site Name Frequency MIAMI OCEANIC CTA/FIR KZMA NEW YORK OCEANIC CTA/FIR KZWY CONTROL 1419 H