Maryland Code, BUSINESS OCCUPATIONS AND PROFESSIONS 14-407
(1) after the effective date of the permit; and
(2) in an even-numbered year.
(b) (1) At least 1 month before a permit expires, the Board shall mail or electronically transmit to the permit holder:
(i) a renewal application form; and
(ii) a notice that states:
1. the date on which the current permit expires; and
2. the amount of the permit fee.
(2) If an electronic transmission under paragraph (1) of this subsection is returned to the Board as undeliverable, the Board shall mail to the permit holder, at the last known address of the permit holder, the materials required under paragraph (1) of this subsection within 10 business days of the date the Board received the notice that the electronic transmission was undeliverable.
(c) Before a permit expires, the permit holder may renew the permit periodically for an additional 2-year term if the holder:
(1) otherwise is entitled to a permit;
(2) pays to the Board a permit fee set by the Board; and
(3) submits to the Board a renewal application on the form that the Board provides.
(d) The renewal application form shall require the same information required on the original application form under § 14-404(b) of this subtitle.
(e) The Board shall renew the permit of each permit holder that meets the requirements of this section.
(f) The Secretary may determine that permits issued under this subtitle shall expire on a staggered basis.