If your license has expired and is still within the allowable grace period, may you continue to operate a transmitter on amateur service frequencies?

Transmitting on amateur service frequencies requires that your license be current and valid. If your license has expired, even though it might still be within a grace period, you're not permitted to operate a transmitter. The grace period allows you time to renew your license without taking a new exam, but it does not grant the authority to transmit until your renewal has been processed and is reflected in the Universal Licensing System (ULS) database. Therefore, until the new license is active in the system, operating is not allowed.

The other options suggest scenarios that might imply some level of authority to transmit, but none of them accurately reflect the regulations and guidelines set forth by the Federal Communications Commission (FCC) regarding amateur radio operation with an expired license. Maintaining compliance with these rules is essential for all operators.