Final answer:
The security program required for the mentioned charter operation is the TSA Twelve-Five Standard Security Program. Passengers, baggage, and cargo do not need to be screened, as long as certain security measures are followed.
Step-by-step explanation:
The security program required for a Part 135 charter operation from a General Aviation airport in a C-26 Metroliner Aircraft would be the TSA Twelve-Five Standard Security Program (TFSSP). This program is designed for aircraft with a seating capacity of 20 or fewer passengers and a maximum takeoff weight of 12,500 lbs or less.
Passengers, baggage, and cargo do not need to be screened under this program, as long as certain security measures are implemented and followed. These measures include secure access to the aircraft, verification of passenger identification, and keeping a manifest of all passengers on board.
It is important to note that this information is accurate as of the time of writing, and regulations may change. It is always recommended to consult the most up-to-date regulations and consult with the appropriate authorities for specific security requirements.