42 CFR §2.18
Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗
No person may require any patient to carry in their immediate possession while away from the part 2 program premises any card or other object which would identify the patient as having a substance use disorder. This section does not prohibit a person from requiring patients to use or carry cards or other identification objects on the premises of a part 2 program.