"Small business" means a corporation or a concern, including its affiliates, that is independently owned and operated, not dominant in its field, and employs fewer than 50 full-time employees or has gross annual sales of less than $4,000,000. For purposes of a specific rule, an agency may define small business to include employment of 50 or more persons if it finds that such a definition is necessary to adapt the rule to the needs and problems of small businesses and organizations.
"State agencies" means all officers, boards, commissions, and agencies of the executive branch, including all officers, departments, boards, commissions, agencies, institutions, authorities, universities, and bodies politic and corporate thereof; and administrative units or corporate outgrowths of the State government which are created by or pursuant to statute, other than units of local government and their officers, school districts and boards of election commissioners; all administrative units and corporate outgrowths of the above and as may be created by executive order of the Governor.
20 ILCS 608/20