Business · 13/05/1994Updated: 10/16/2026 · 1 min read

Modification of Class D Airspace; Bismarck, ND, Grissom AFB, IN, Muskegon, MI, and Mansfield, OH

Summary

The Federal Aviation Administration (FAA) is modifying Class D airspace areas at four US airports to coincide with their associated control towers' hours of operation, aiming to clarify when two-way radio communication is required.

Original source language: Federal Register — Transportation DepartmentOpen original release →

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