Ind. Code § 9-21-4-13

Sec. 13. A local unit that has responsibility for roads and streets may determine by an engineering and traffic investigation those parts of a road or street, including bridges, under the unit's jurisdiction where overtaking and passing or driving to the left of the roadway would be especially hazardous. Upon making that determination, the local unit may, by ordinance, designate no-passing zones by appropriate signs or marks on the roadway.