For the purpose of administering this subtitle:
(1) "Authorized agent" means a person appointed by an owner of a horse to represent the owner. The term is limited to a person who is appointed by a written instrument that the commission acknowledges and approves.
(2) "Clerk of scales" means a racetrack official who is responsible for weighing a jockey before and after a race.
(3) "Handicapper" means a person who predicts the winner of a horse race.
(4) "Horseshoe inspector" means a racetrack official who inspects the shoes of the horses entered in a race.
(5) "Jockey" or "apprentice jockey" means a professional rider licensed by the commission to ride in horse races.
(6) "Jockey room custodian" means a person who maintains the premises of a room in which jockeys prepare for a race.
(7) "Official starter" means a racetrack official who is in charge of the start of a race.
(8) "Paddock judge" means a racetrack official who supervises animals entered in a race while the animals are assembled before the beginning of a race in an enclosure on the grounds of a racetrack.
(9) "Patrol judge" means a racetrack official who is stationed at a set point along the racetrack to monitor the running of a race.
(10) "Quarter horse racing" means the form of horse racing in which quarter horses mounted by jockeys engage in a race.
(11) "Stable foreman" means the person in charge of the building in which horses are lodged and fed.
(12) "Timer" means a racetrack official who times the running of a race.