Sec. 20. "Directional and other official signs and notices" includes signs and notices pertaining to natural, scenic, and historical attractions that are required or authorized by law and conform to the national standards adopted by the United States Secretary of Commerce under 23 U.S.C. 131(c).
Ind. Code § 8-23-1-20
"Directional and other official signs and notices"
As added by P.L.18-1990, SEC.178.
Official source: Indiana General Assembly. Reproduced from public-domain Indiana statutes; confirm against the official source for the current text. Not legal advice.