510 ILCS 90/5
The Department is authorized to establish a program aimed at controlling the spread of pseudorabies. This authority includes, but is not limited to, requiring negative tests of swine, the right to quarantine swine infected with or exposed to pseudorabies, to establish guidelines and specified herd plans for monitoring the disease in Illinois herds, to require that a minimum of 30 days elapse before the owner may repopulate the premises after swine have been depopulated, and to conduct market swine testing programs. The Director may issue regulations, consistent with the provisions of this Act, for the administration and enforcement of this Act. Such regulations shall be approved by the Advisory Board of Livestock Commissioners.
The Department in performing the duties vested in it under this Act is empowered to enter, during usual working hours, any premises, barns, stables, sheds, slaughter establishments, or other places where swine are kept or slaughtered, for the purpose of administering the provisions of this Act; provided, sanitized footwear furnished by the Department is used as well as any other reasonable disease prevention procedures or equipment as may be furnished by the owner or operator of the premise.
510 ILCS 90/5