Okla. Admin. Code § 610:25-21-2
The following words or terms, when used in this Subchapter, shall have the following meaning, unless the concept clearly indicates otherwise:
"Accredited Institution" means any college or university having regional accreditation.
"Dependent Child" includes any son, daughter, stepchild, or adopted child, who as of April 19, 1995, could lawfully be claimed as a dependency exemption for federal income tax purposes by his/her parents or guardian, or who could have been so claimed but for the fact that the parent killed in the Murrah Building bombing was prohibited from claiming that exemption by a court-ordered divorce decree or separation agreement. The term "dependent child" also includes any child conceived but not yet born as of April 19, 1995.
"Full-time Student" means an enrolled student who is carrying a full-time academic workload, other than by correspondence, as determined by the institution under a standard applicable to all students enrolled in a particular educational program measured in terms of
(A) course work or other required activities including any combination of courses, work experience, research or special studies which the institution requires of the student to consider him or her as being engaged in full-time study, and which amounts to the equivalent of a minimum of 12 undergraduate credit hours or nine graduate credit hours per academic semester, trimester, or quarter and
(B) the enrollment fees customarily charged for full-time study by the institution.
Okla. Admin. Code § 610:25-21-2