CA.I.E.K2FAA-S-ACS-7B · Nov 2023Knowledge
Chart symbols.
Chart symbols.
Bottom line
The MSL ceiling and floor altitudes of each sector are shown in solid magenta figures with the last two zeros eliminated.
Key numbers
| Number | What it means |
|---|---|
| 1200' AGL unless designated otherwise | Class E floor |
| up to 14,500' MSL | Class G top |
| 700' AGL floors | Magenta vignette |
| surface to 10,000' MSL within 30 NM of the primary airport of a Class B | Mode C veil |
| four digits if no segment above 1500'; three or fewer digits if a segment is above 1500' AGL | MTR digits |
FAA references
- Chart Users' Guide: Explanation of VFR Terms and Symbols — effective 22 January 2026
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