; and (2) include in the notification an assurance that the covered employee was selected randomly and is under no suspicion of illegal drug use. (d) Deferral of Testing A covered employee selected for random drug testing under this section may obtain a deferral of testing if the covered employee is— (1) in a leave status; or (2) in official travel status away from the test site or will embark on official travel that was scheduled prior to the notification of selection under subsection (c). (e) Finding of Illegal Drug Use and Disciplinary Consequences (1) Finding of Illegal Drug Use The Secretary may determine that a covered employee has engaged in illegal drug use based on any of the following: (A) A verified positive test result from a specimen submitted by the covered employee. (B) Direct observation by a higher-level supervisor, including observed illegal drug use and the unlawful possession of a drug listed under subsection (a)(2). (C) Evidence obtained from an arrest or criminal conviction of the covered employee. (D) The voluntary admission of the covered employee. (2) Mandatory Administrative Action (A) In General If a covered employee is found to have engaged in illegal drug use under paragraph (1), the Secretary shall— (i) prohibit the covered employee from performing any activity related to providing health care or administrative services to patients