(a) Has graduated from high school; or
(b) Is employed during such time as public schools are not in session for a period exceeding 30 days.
(2) The bureau or a person authorized by the bureau shall investigate periodically the conditions of the employment for which a special permit has been issued, to determine whether the permit should be continued. [1967 c.347 §2; 1995 c.343 §51; 2013 c.296 §25]