GEN 2.3 Chart symbols
5. Aerodrome data in abbreviated form which may be in association with aerodrome symbols
6. Aerodrome symbols for approach charts
9. Airspace classifications
10. Airspace restrictions
14. Symbols for aerodrome/heliport charts
15. Symbols for aerodrome obstacle charts - Type A, B and C
16. Additional symbols for use on paper and electronic charts