38 CFR § 1.467 - Restrictions on the use of identification cards and public signs.
(a) No facility may require any patient to carry on their person while away from the facility premises any card or other object which would identify the patient as a participant in any VA drug abuse, alcoholism or alcohol abuse, HIV infection, or sickle cell anemia treatment program. A facility may require patients to use or carry cards or other identification objects on the premises of a facility. Patients may not be required to wear clothing or colored identification bracelets or display objects openly to all facility staff or others which would identify them as being treated for drug or alcohol abuse, HIV infection, or sickle cell anemia.
(b) Treatment locations should not be identified by signs that would identify individuals entering or exiting these locations as patients enrolled in a drug or alcohol abuse, HIV infection, or sickle cell anemia program or activity.