The Federation Temporal Agency was a 31st century civilian Federation agency tasked with observing time and enforcing the Temporal Accords.
The 24th century Department of Temporal Investigations knew of the agency's participation in the Temporal Cold War. (DTI novel: Watching the Clock)
By the 31st century, the organizational head of the Federation Temporal Agency was known as Temporal Command. (STO - Yesterday's War mission: "Survivor")