AUTHORITY: Implementing Section 4 and authorized by Section 5 of the Illinois State Agency Historic Resources Preservation Act [20 ILCS 3420/4 and 5].
SOURCE: Adopted at 15 Ill. Reg. 18151, effective December 9, 1991; amended at 17 Ill. Reg. 1521, effective January 25, 1993; recodified Chapter VI from the Historic Preservation Agency to the Department of Natural Resources pursuant to Executive Order #17-1, at 48 Ill. Reg. 6145.