42 CFR § 2.18 - Restrictions on the use of identification cards.

---
identifier: "/us/cfr/t42/s2.18"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "42 CFR § 2.18 - Restrictions on the use of identification cards."
title_number: 42
title_name: "Public Health"
section_number: "2.18"
section_name: "Restrictions on the use of identification cards."
chapter_name: "PUBLIC HEALTH SERVICE, DEPARTMENT OF HEALTH AND HUMAN SERVICES"
subchapter_number: "A"
subchapter_name: "GENERAL PROVISIONS"
part_number: "2"
part_name: "CONFIDENTIALITY OF SUBSTANCE USE DISORDER PATIENT RECORDS"
positive_law: false
currency: "2026-03-24"
last_updated: "2026-03-24"
format_version: "1.1.0"
generator: "[email protected]"
authority: "42 U.S.C. 290dd-2; 42 U.S.C. 290dd-2 note."
regulatory_source: "82 FR 6115, Jan. 18, 2017, unless otherwise noted."
cfr_part: "2"
---


# 2.18 Restrictions on the use of identification cards.

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.