Iowa Code § 279.9: Use of tobacco, alcoholic beverages, or controlled substances.

The rules adopted under section 279.8 shall include rules prohibiting the use of tobacco and the use or possession of alcoholic liquor, wine, or beer or any controlled substance as defined in section 124.101, subsection 5, by any student of the schools. The board may suspend or expel a student for a violation of a rule described under this section.