Md. Code, Insurance § 15–2006

A pharmacy services administrative organization shall maintain adequate books and records regarding each independent pharmacy for which the pharmacy services administrative organization provides services as a pharmacy services administrative organization:

(1) in accordance with prudent standards of record keeping;

(2) for the duration of the agreement between the pharmacy services administrative organization and the independent pharmacy; and

(3) for 3 years after the pharmacy services administrative organization ceases to provide services as a pharmacy services administrative organization for the independent pharmacy.