US-FAA14 CFR 91.130
Operations in Class C airspace
Read the official ruleIn plain English
To operate in Class C airspace you must establish two-way radio communication with ATC before entering and maintain it, and have an operating Mode C transponder and ADS-B Out. There is no separate "clearance" required — communication is the key.
Key points
- Two-way comm established before entry; Mode C + ADS-B Out required.
- ATC provides separation between IFR and participating VFR traffic.
- The outer area extends ~20 NM with services available.
Common pitfalls
- Assuming you need an explicit "cleared to enter" — establishing comms is what’s required.
*This is a plain-English summary for study only. The official 14 CFR text on this page is controlling — always read the current regulation.*
This is an original plain-English explanation for training and reference, not legal advice and not for navigation. Always rely on the current official rule linked above. Last reviewed June 7, 2026.