- 80 - related vocational or technical instruction in classes limited to the cooperative group. In a program covering less than two school years, an average of two class periods a day must be devoted to related vocational or technical subjects. Federal or state matching vocational-technical funds may not be used to reimburse sectional cooperative classes where vocational or technical students other than industrial are enrolled. 2.23 Qualifications of Teacher-Coordinators. 2.23-1 Training for Teaching. Shop and laboratory instructors who are to coordinate the training of student-learners placed on the job from their respective shops or laboratories shall meet the qualifications of an all-day trade or technical teacher in the industrial area they are to coordi- nate as described in 2.42-2 of this Section. All other coordinators should meet the certification requirements of an industrial teacher-coordinator of specialized part-time cooperative training. 2.23-2 Experience in Trade or Industrial Pursuits. Shop and laboratory instructors who are to coordinate training shall meet the experience requirement described in 2. 42-1 of this Section. 2.24 Qualifications of Non-Teaching Coordinators. Coordinators of part-time cooperative classes who have no teaching responsibilities shall meet the same qualifications as a local coordinator of industrial education as described in 1.52-1 of this Section. 2.25 Qualifications of Teachers and/or Coordinators of Sectional Cooperative Classes. This provision does not apply. 2.26 Duties of Teacher-Coordinators. A teacher-coordinator of joint school-industry training programs shall act as a liaison person between industry and the school on matters pertaining to training needs, placement of trainees, coordination of job training and related instruction, and conformity with written agreements. The teacher- coordinator shall work closely with craft committees and shall perform what other coordination functions are assigned to him.