Unless the context otherwise requires, the definitions in this article govern the construction of the chapter.

“Courtesy pass admission” means any admission, without payment of the admission charge, to any state, county, district, or citrus fruit fair, except any of the following:

“Credential admission” means any admission which is authorized by the board of directors of a state, district, or citrus fruit fair, or by the board of supervisors of a county for admission to a fair without payment of the admission charge when a service is rendered by the person who is admitted which is necessary for the conduct of the fair.