Students in grades K-8 who participate in the Corollary Athletic Program shall: Be officially registered and attending a Maryland Public School; and Present to their school principal, or the principal's designee, a form from a parent or guardian giving permission for participation. Secondary school students in grades 9-12 who participate in the Corollary Athletic Program: Shall be officially registered and attending a Maryland Public School; Shall present to their high school principal, or the principal's designee, a form from a parent or guardian giving permission for participation; Shall be making satisfactory progress toward: Graduation with a Maryland High School Diploma specified in COMAR 13A.03.02.09B; or School completion with a Maryland High School Certificate of Program Completion specified in COMAR 13A.03.02.09D; and May not have participated on an interscholastic athletic team in the same sport. If a student acquires a disability during their years of participation in interscholastic ports, the local school system may permit an exception to §B(4) of this regulation.