The Supreme Court is setting the stage for a ruling that likely will give hundreds of school systems guidelines on how to end federal court supervision of their desegregation efforts.

The justices announced Tuesday they will hear an appeal by DeKalb County, Ga., officials who say schools in their suburban Atlanta district have achieved full integration - or "unitary" status. A decision is expected in 1992.DeKalb Schools Superintendent Robert R. Freeman welcomed the court's action.

In other actions Tuesday, the court:

-Said it will decide whether employers may bar their workers from serving in the military or military reserves. The court will review a ruling in Alabama that said an employee's request for a military leave may be denied if it is "unreasonable."

-Agreed to decide in a New York case whether states may compensate crime victims by seizing the profits paid to criminals for books, movies and other depictions of their exploits.

-Ruled by a 6-2 vote in a Michigan case that states may impose "value-added" taxes on out-of-state companies doing business within their borders.

-Let stand the federal government's random drug-testing program for airline employees.

-Allowed California to tax the distribution of books and pamphlets used by followers of the Hare Krishna religion, letting stand a ruling that the state tax does not violate religious freedom.

-Rejected a steel industry challenge to air pollution control standards the government adopted for "particulate matter" in 1987.