The term “severe disabilities” shall be interpreted for the purpose of this division as referring to persons who meet both of the following requirements:
1. Persons who are educable but have severe physical and educational disabilities as a result of cerebral palsy, muscular dystrophy, spina bifida, arthritis, poliomyelitis, or other severe physically disabling conditions.
2. Persons who are not eligible for admission to the schools already established for persons with mental retardation or epilepsy or persons who are deaf or blind.
84 Acts, ch 1219, §12; 96 Acts, ch 1129, §74