24 Pa. Stat. § 19-1904
Any board of school directors may require a deposit fee of a sum not to exceed seven dollars and fifty cents ($7.50) from each person enrolling in such extension schools or classes, and may require further that such deposit fees accompany each written application for such extension instruction. Such deposit fee shall be returned at the close of each term of instruction to all persons so enrolled who have attended seventy-five per cent (75%) or more of the class sessions of said term, and may be returned at any time because of death, sickness or for any other cause which the board may deem justifiable.
The board of school directors may require each student to pay a tuition fee for any adult education or recreation activity not listed in section 1901. The tuition fee shall be computed in accordance with section 2561(4).
24 P.S. § 19-1904