Duty personnel
Duty personnel were the personnel on duty at their particular duty stations.

The signage on the doors of the Earth Cargo Service freighter  features guidelines how to react in emergency situations. It says that in an event of pressure loss all duty personnel should take on pressure suits. ()

While the  was in orbit of Psi 2000, Lieutenant Uhura made an announcement signaling for the engine room to go on standby alert, and for all duty personnel to report to the Bridge. ()

Captain James T. Kirk put all duty personnel on yellow alert when it was discovered that an Orion scout ship was pacing the Enterprise as it transported a delegation to the Babel Conference in 2268. ()

In 2269, Captain Kirk put all duty personnel on yellow alert upon entering the Delta Triangle. ()

See also 
 Duty engineer
 Duty officer
Military
Occupations
Groups