Code of Federal Regulations Title 20. Employees' Benefits § 20.219.55 Evidence of school attendance for child age 18

(a) A signed statement that he or she is attending school full-time and is not being paid by an employer to attend school;  and

(b) A statement from an official of the school verifying that the child is attending school full-time. The Board may also accept as evidence a letter of acceptance from the school, receipted bill, or other evidence showing that the child has enrolled or been accepted at that school or is continuing in full-time attendance.