The driver of each school bus must be an experienced driver of good moral habits, and neither he nor any pupil nor any other person shall use alcoholic liquors or smoke any cigar, cigarette, pipe, tobacco or other substance in such vehicle during the time he is operating the same as a school bus.
Qualifications of bus driver; drinking or smoking on bus
S.C. Code Ann. § 59-67-150, under Title 59, Chapter 67.
S.C. Code Ann. § 59-67-150