There Is a Newer Version of the Maryland Code
Maryland Agriculture Section 2-710
§ 2-710.
  (a)   Except as otherwise provided in this subtitle, a person may not engage in the business of operating or maintaining any horse riding stable unless the person has received a license and a certificate issued by the Board.
  (b)   This section does not apply to a holder of a livestock dealer's or livestock market license issued under Title 3, Subtitle 3 of this article. However, a holder of a livestock dealer's or livestock market license shall comply with the other provisions of this subtitle.