24 Pa. Stat. § 25-2563
The board of school directors in any school district maintaining an elementary school or a high school or an extension class which is attended by any pupils residing in another district shall, upon admission of such pupils, properly certify to the board of school directors of the school district in which such pupils reside, the names of all such pupils and whether they are attending an elementary school or a high school or an extension class, together with a statement of the tuition charge per elementary pupil and the tuition charge per high school pupil and the career and technical or other extension tuition charge per pupil hour of instruction. All such tuition charges shall be paid monthly to the school district maintaining such elementary school or high school by the school district to which the same was certified.
24 P.S. § 25-2563