42 C.F.R. § 2.18 Restrictions on the use of identification cards.
Title 42 - Public Health
No person may require any patient to carry on his or her person while away from the program premises any card or other object which would identify the patient as an alcohol or drug abuser. This section does not prohibit a person from requiring patients to use or carry cards or other identification objects on the premises of a program.
Title 42: Public Health
PART 2—CONFIDENTIALITY OF ALCOHOL AND DRUG ABUSE PATIENT RECORDS
Subpart B—General Provisions
§ 2.18 Restrictions on the use of identification cards.