and who is physically present within the geographical area served by a local unit of administration for any length of time is eligible for enrollment in the educational programs of that local unit of administration; provided, however, that the child meets the age eligibility requirements established by this article. Except for children who are committed to the Department of Juvenile Justice and receiving education services under Code Section 20-2-2084.1, the local unit of administration of the school district in which such child is present shall be responsible for the provision of all educational programs, including special education and related services, at no charge so long as the child is physically present in the school district.
OCGA § 20-2-133