7 VFR AERONAUTICAL CHART SYMBOLS
1200 feet AGL or greater that abuts uncontrolled airspace (Class G) ... Differentiates floors of airspace greater than 700 feet above the surface... When the ceiling is less than 18,000 feet MSL, the value, prefixed by the word "ceiling," shall be shown along the limits. OFFSHORE CONTROL AREAS AIRSPACE INFORMATION. VFR AERONAUTICAL CHARTS Aeronautical Information 12 CANADIAN .