Final answer:
To request a SVFR clearance to depart or enter Class D airspace, you would contact the air traffic control (ATC) facility responsible for that specific airspace, such as the local FAA tower or approach control facility.
Step-by-step explanation:
To request a Special VFR (SVFR) clearance to depart or enter Class D airspace, you would contact the air traffic control (ATC) facility responsible for that specific airspace. In the United States, the Federal Aviation Administration (FAA) controls and manages the airspace, and you would need to contact the local FAA tower or approach control facility.
For example, if you are at an airport located within Class D airspace and you want to depart or enter that airspace under SVFR conditions, you would contact the tower controller at that airport. They will provide you with the necessary instructions and clearances to operate in that airspace.
It's important to note that SVFR clearances are usually granted on a case-by-case basis, taking into account the weather and other factors affecting the safety of flight operations.