the designation or determination shall be by order of the commissioner of the Indiana department of transportation and shall, except for subdivision (1), be evidenced by official signs or markings under this article. The commissioner of the Indiana department of transportation may designate an order adopted under this subsection as an emergency rule and adopt the order in the same manner as emergency rules are adopted under IC 4-22-2-37.1.
IC 9-21-4-7
Pre-1991 Recodification Citation: 9-4-1-125(e).