By retaining in the subject lands a federal proprietorial interest only, there exists a right of the United States to perform the functions delegated to it by the United States Constitution and directed by statutory enactment of the United States Congress without interference from any source.
5 ILCS 573/5-15
Performance of functions
Known as the Joliet Outdoor Training Area Military Reservation Retrocession Law
The act spans §§ 5-573-5-1 to 5-573-5-5 (9 sections).
P.A. 88-369.
Official source: Illinois General Assembly. Reproduced from public-domain Illinois statutes; confirm against the official source for the current text. Not legal advice.