Conn. Gen. Stat. § 10-52: Adult education.

A regional district may provide adult education for the towns in the district in accordance with sections 10-67 to 10-70, inclusive, and shall be eligible for reimbursements for adult education programs in accordance with sections 10-67 and 10-71. Any balance of the cost of such adult education shall be prorated among and paid by the towns on the basis of the clock hour pupil attendance from each town. The regional board of education shall charge tuition for any student from outside the regional school district who participates in the adult education program.