MARYVILLE (WATE) – Maryville school officials have approved a new policy on drug testing students.

The policy allows random drug testing of student athletes and drivers in grades 9 through 12.Previous story: Maryville schools plan to launch random drug testing for athletes, drivers

Maryville Director of Schools Dr. Mike Winstead says the change will go into effect this fall, but did not say how often the tests would take place. He did confirm they plan to administer about 500 tests in the next year.

About 800 students fall into the category where they could be tested.