Maryland Insurance Section 8-607
§ 8-607.
  (a)   A registration expires at the end of every other year on the anniversary of the registration unless it is renewed as provided in this section.
  (b)   Before a registration expires, the registrant may renew it for an additional 2-year term, if the registrant:
    (1)   otherwise is entitled to be registered;
    (2)   files with the Commissioner a renewal application on the form that the Commissioner requires; and
    (3)   pays to the Commissioner a renewal fee of $50.
  (c)   An application for renewal of a registration shall be considered made in a timely manner if it is postmarked on or before the anniversary date of the registration of the year of renewal.