58 Pa. Code § 163.188
The jockey or apprentice shall be bound by written contract approved by and filed with the Commission to an owner or trainer for a term of not less than 3 nor more than 5 years, subject to a written extension, if made for less than 5 years. After at least 1 year service with a racing stable, an apprentice may claim weight allowances in all overnight races, except handicaps or stakes races. A person is not allowed to hold a contract on a jockey or apprentice jockey unless that person is in control or possession of a stable or horse that would, in the opinion of the stewards of the meeting where the jockey or apprentice jockey applies for a license, warrant the employment of a contract jockey or apprentice jockey.
58 Pa. Code § 163.188
The provisions of this § 163.188 amended under section 202(a) of the Race Horse Industry Reform Act (4 P. S. § 325.202(a)).