The phrase "a joint task" is correct and usable in written English.
You can use it to refer to a task that is accomplished by two or more people working together. Example sentence: We successfully worked together to complete a joint task.
Affected countries could move these proposals forward by establishing a joint task force, also proposed in Bangkok a year ago, that can issue standard operating procedures for the rescue of refugees and migrants in distress at sea.
American officials also set up a joint task force with their counterparts in Riyadh to investigate terrorist financing.
The Pentagon has set up a joint task force out of Okinawa, deploying forces to Thailand, Sri Lanka and Indonesia.
Under the agreement, the comptroller and the attorney general established a joint task force on public integrity.
Under the agreement, the comptroller and the attorney general will establish a joint task force on public integrity.
It would create a joint task force of the Justice and Education Departments to develop school safety guidelines.
In Westchester County this spring, the police in Greenburgh, Rye, Rye Brook and Elmsford formed a joint task force to investigate ads on Craigslist, resulting in 30 arrests.
A joint task force drew up the new district lines for 150 Assembly seats and 62 Senate seats, in response to the 2000 census.
Bagram is run not by combat units but by a joint task force, whose job it is to run the prison and court complex.
Daiichi Sankyo and Ranbaxy executives have put together a joint task force to make sure quality-control systems are in place and will improve, she said.
John Kutsko, the executive director of the Society of Biblical Literature, is part of a joint task force charged with agreeing on a labor policy.
