As used in this chapter:

1. (1) “Commission” means the Delaware Harness Racing Commission.
2. (2) “Commissioner” means a member of the Delaware Harness Racing Commission.
3. (3) “Harness racing,” “harness races,” “harness horse racing” or “harness horse races” means and includes only any racing of horses in which the horses competing or participating are harnessed to a sulky, carriage or similar vehicle and are not mounted by a jockey.

45 Del. Laws, c. 303, § 10; 28 Del. C. 1953, § 501; 66 Del. Laws, c. 303, § 261(a)