All students will receive counseling and guidance services from certified school counselors. The guidance program shall provide one counselor for a maximum of 450 students, with no school district having less than one half-time counselor with one exception: districts with fewer than 225 students may prorate the number of hours per week a certified school counselor is required by dividing the number of students enrolled by 450 and multiplying the quotient by 30.
Okla. Admin. Code § 210:35-7-43