42 CFR Part 2 Subparts C & D

4900 42 CFR PART 2 CD


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The authorizing statute, Title 42, United States Code (U.S.C.) 290dd–2, protects the confidentiality of the records containing the identity, diagnosis, prognosis, or treatment of any patient that are maintained in connection with the performance of any federally assisted program or activity relating to substance abuse (now referred to as substance use disorder) education, prevention, training, treatment, rehabilitation, or research.


Subpart C - Disclosures with Patient Consent

Required elements for written consent. Written consent to disclosure under the regulations in this part may be paper or electronic and must include:

(1) The name of the patient. (2) The specific name(s) or general designation(s) of the part 2 program(s), entity(ies), or individual(s) permitted to make the disclosure. (3) How much and what kind of information is to be disclosed, including an explicit description of the substance use disorder information that may be disclosed. (4) (i) The name(s) of the individual(s) to whom disclosure is to be made.

Subpart D - Disclosures Without Patient Consent

  • Medical emergencies
  • Research
  • Audit and evaluation



CFR 42 can be purchased INDIVIDUALLY or as a group of Parts A through E. See links below.

  1. Subparts A & B
  2. Subparts C & D
  3. Subpart E
  4. COMBO Subparts A-E