- 49 - trained. The total time the enrollee is in school will not exceed the time he is at work. In no case shall the time at school and the time at work be such as to violate legal employment regulations. In programs covering one school year, an average of two periods per day must be devoted to related vocational sub- jects. In programs covering two school years, an average of one period per day must be devoted to such subjects. 2.52 Qualifications of Teacher-Coordinators. 2.52-1 Professional Preparation in Business or Distributive Education. A teacher-coordinator shall have a graduate certificate, including six semester hours of professional vocational courses such as those con- cerned with related study and job analysis for cooperative training, and the organization and coordination of distributive cooperative education. If he does not possess a graduate certificate but has graduated from a standard four-year institution he may qualify by completing 14 semester hours of professional vocational courses as outlined in the "Florida Requirements for Teacher Education and Certification. " 2.52-2 Technical Preparation in Business or Distributive Education. A teacher-coordinator shall have a minimum of six semester hours of course work which is related to the distributive occupational subjects to be taught. A teacher-coordinator of business education shall have certification in the area of business education. 2.52-3 Experience in Business and/or Distributive Education. A teacher-coordinator shall have a minimum of two years of practical work experience in occupations considered either business or distributive, one year of which shall have been as a full-time employee. 2.53 Qualifications of Teachers and/or Coordinators of Sectional Cooperative Classes. This provision does not apply.