17 GCA § 6103: Children who Have Reached the Age of Five (5) Years Eligible to Attend.

(a) Any child whose fifth birthday falls on or before the commencement date of classes may, in such year, enroll in the kindergarten of any public school within Guam which the child is otherwise eligible to attend, except that any child whose fifth birthday falls within one hundred twenty-five (125) days after the beginning date of classes on the school calendar in the attendance area where they live, and are designated to attend, may enroll in kindergarten, subject to the approval of the principal of the school pursuant to the policy mandated by §§ 6104 and 6105 of this Act.

(b) The effective date of this Section shall be the start of School Year 1998-1999.