In Class D airspace, is ATC clearance required?

• A. Not Required
• B. Required
• C. Only IFR
• D. Depends on altitude

Answer: (B)

In Class D airspace, you must be in two-way radio communication with ATC before you enter and while you’re operating there. This ensures ATC can see you, issue instructions, and provide separation for all flights. For IFR flights, that communication translates into an ATC clearance to operate within the airspace. For VFR flights, there isn’t a separate clearance you request like in higher classes, but you still must establish and maintain contact with the tower to legally enter and remain there. Because being able to communicate with ATC beforehand is the defining requirement, the need for ATC clearance (in the sense of being in contact and under ATC supervision) is the best fit. The altitude or IFR-only nuances don’t change this requirement, and you don’t enter Class D without that two-way communication.