Executive Order 12564, dated September 15, 1986, establishes the U.S. Government as a drug-free workplace. It declares that “persons who use illegal drugs are not suitable for federal employment.” Applicants cannot be held to a no-prior-use standard, but any illegal drug use at all by a current U.S. Government employee or member of the military is a violation of this presidential order. The use of illegal drugs or the misuse of prescription drugs can raise questions about an applicant’s reliability and trustworthiness since these actions impair judgment and suggest an inability or unwillingness to comply with laws, rules and regulations. Cleared employees must respect regulations whether they agree with them or not. If they do not respect the rules on use of illegal substances, they may not respect the rules for protection of classified information.