(a) Boards shall employ teachers who have known competence in the subjects taught. School teacher licensure requirements shall be applied to adult education teachers only in cases where general education subjects are taught in adult basic education programs for grade school or high school credit.

(b) The board shall issue a certificate of accomplishment to every student completing an adult basic education course, which certifies the subjects studied and the accomplishments made therein. Such certificates shall be issued in accordance with the state plan.

(c) Any board may adopt regulations governing the operation of adult education programs. Any board may authorize persons not residents of the district to participate in adult education programs. The teachers and administrators in such adult education programs shall have the same authority over students as is exercised in regular school instruction.