The cottage food operation must register with the county health department that the operation resides in (will need to list all products the operation is planning to sell).  A registration form can be found under our Resources tab at Environmental - Food

The University of Illinois Extension Offices has information on the Cottage Food Law and what foods are eligible.  For more information visit their website at: https://extension.illinois.edu/cottage-food  For information about their training course: cottage_food_course_flyer_final.pdf