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The Pilots Desk
US-FAA14 CFR 91.129

Operations in Class D airspace

Read the official rule

In plain English

To operate in Class D airspace you must establish two-way radio communication with the control tower before entering and maintain it while inside. Comply with pattern and runway instructions; ultralight, glider and parachute operations have special rules.

Key points

  • Two-way comm established before entering (the controller saying your call sign counts).
  • Maintain communication and comply with tower instructions.
  • Arriving/departing IFR or VFR per tower direction.

Common pitfalls

  • Entering before the tower acknowledges your call sign by name.
  • If told "remain clear," do not enter until cleared.

*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.