Md. Code, Business Regulation § 11–210

(a) Except as provided in subsection (b) of this section, the Commission may:

(1) adopt regulations and conditions to govern racing and betting on racing in the State; and

(2) approve or disapprove:

(i) prices that a licensee may set for admission to a race, a service performed, or an article sold at a track; and

(ii) the size of the purse, reward, or stake to be offered at a race.

(b) The Commission may not adopt regulations that allow:

(1) racing a breed of horse not now authorized by law; or

(2) holding currently unauthorized:

(i) intertrack betting;

(ii) off-track betting; or

(iii) telephone betting other than telephone account betting.