Md. Code Regs. 10.34.08.01
In addition to the information required by law on every prescription, patient drug profile, or computerized patient drug record, the following information shall be legibly entered on all original and refill prescriptions or patient drug profiles or computerized patient drug records:
B. The initials of, or other identifying symbol for:
Authority: Health Occupations Article, §12-205, Annotated Code of Maryland
Effective date: February 6, 1981 (8:3 Md. R. 227)
Chapter revised effective March 15, 1982 (9.5 Md. R. 527)
Regulation .01B amended effective January 28, 2008 (35:2 Md. R. 127)