D.C. Mun. Regs. tit. 17, § 10310
10310.1 Any prescriber or dispenser who intends to request information from the Program about a patient or prospective patient shall provide notice to the patient that a request may be made to obtain information on all covered substances dispensed to that patient. The notice may be provided by use of a conspicuous sign in an area that will be easily viewed and read by the patient.
10310.2 In lieu of posting a sign, the prescriber or dispenser may provide notice in written material provided to the patient, or may obtain written consent from the patient.
SOURCE: Final Rulemaking published at 62 DCR 15828 (December 11, 2015).