OPEN MINDS The Behavioral Health & Social Service Industry Analyst Industry News - Special Report In September of 1986 President Reagan issued Executive Order 12564. The order required all federal employees to refrain from using illegal drugs and authorized drug testing under certain circumstances to identify illegal drug users. Executive Order 12564 also requires the head of each executive branch agency to develop a plan for achieving a drug-free workplace. The plans were to include provisions for identifying illegal drug users through testing. The order and the 1987 Supplemental Appropriation Act . . .