Anomaly consolidation duty
Anomaly consolidation duty (ACD) was an annual work assignment aboard Federation starships, in which hazardous scientific research materials  that could not be recycled in a matter recombinator, accumulated by the senior staff from their missions, were packed up and sent to a facility for proper disposal. Some junior officers regarded ACD as a degrading day where they had to pick up their superiors' "trash".

In 2381, Ensigns Beckett Mariner, Brad Boimler, Sam Rutherford, and D'Vana Tendi were assigned to anomaly consolidation duty on the , though Boimler got out of it from associating with the Redshirts. After a series of dangerous encounters with various unsecured samples, Tendi admitted that she had requested ACD for them because the others had complained about not being assigned to exciting missions. ()

Missions and expeditions