Both the USMC and USN the Commanding Officer, Acting CO or detachment CO signs the flight schedule. Copies of the flight schedule are forwarded to higher at least one day prior to the flight schedule's execution.
If standby, alert, etc. lines then the crew(s) are to be current and qualified for all the missions they can be assigned.
Crew, mission, or training code changes on the day of execution are to routed through the same chain as the original flight schedule unless a role-ex plan has already been incorporated into the original flight schedule.
S/F, FOG