Maryland Financial Institutions Section 12-114
§ 12-114.
  (a)   A licensee shall keep the books and records that the Commissioner requires to determine compliance with this subtitle.
  (b)   Unless a longer period is expressly required by State or federal law, a licensee shall retain the records required under this subtitle for a period of at least 2 years.
  (c)   A licensee may retain the records required under this subtitle at any location, provided that the licensee:
    (1)   Notifies the Commissioner in writing of the location of the records; and
    (2)   Makes the records available at a place of business for which a license has been issued or at the licensee's principal place of business, as agreed by the Commissioner and the licensee, within 7 days of a written request for examination by the Commissioner.
  (d)   In addition to any other books and records that the Commissioner may require, a licensee shall retain:
    (1)   A chronological register of all payment instruments cashed by the licensee showing:
      (i)   The name of the customer;
      (ii)   The transaction date;
      (iii)   The type and amount of payment instrument;
      (iv)   The amount of fee charged; and
      (v)   A complete description of the identification presented by the customer; and
    (2)   The licensee's bank statements and canceled checks.
  (e)   A licensee shall retain the records required under this section in one of the following ways:
    (1)   Original form;
    (2)   An electronic equivalent approved by the Commissioner; or
    (3)   A microphotographic copy approved by the Commissioner.