handoff

(hăndˈôfˌ, -ŏfˌ)

1. Football The act or an instance of handing the ball to a teammate during a play.
2. Sports The act or an instance of handing a baton to a teammate in a relay race.
3. The act or an instance of passing something or the control of it from one person or agency to another: a handoff of the aircraft from one control tower to another.