Proof of studies The required documents concern children age 18 to 25 who are full-time students and without a spouse. For each child, you must provide: One or more confirmations of registration for a full-time study program, which lists the number of units or number of course hours or confirming that the child is pursuing full-time studies, for the entire period covered by the contested decisionIf the student holds one or more jobs, a letter from each employer