Section 505 ILCS 30/10 - Rules and regulations(a) The Director is hereby charged with the enforcement of this Act and is empowered to promulgate and adopt, after due notice and public hearing, such reasonable rules and regulations as may be necessary in order to secure efficient administration of this Act.(b) The official definitions of feed ingredients and official feed terms as adopted and published by the Association of American Feed Control Officials and any amendments or supplements thereto are the official definitions of feed ingredients and official feed terms, except insofar as specifically amended, modified or rejected by a rule adopted by the Director.(c) Federal rules adopted by the U.S. Food and Drug Administration, Department of Health and Human Resources relating to Sections 406, 408, 409, 512 and 706 of the Federal Food, Drug and Cosmetic Act are the rules governing those Sections, except insofar as specially amended, modified or rejected by a rule adopted by the Director.(d) The good manufacturing practices established as part 225 and part 226 rules pursuant to the Federal Food, Drug and Cosmetic Act are the good manufacturing practices for the purposes of this Act, except insofar as specifically amended, supplemented, modified or rejected by rules adopted by the Director.