820 ILCS 405/212

Service performed by an individual for an employing unit, whether or not such individual employs others in connection with the performance of such services, shall be deemed to be employment unless and until it is proven in any proceeding where such issue is involved that--

A. Such individual has been and will continue to be free from control or direction over the performance of such services, both under his contract of service and in fact; and

B. Such service is either outside the usual course of the business for which such service is performed or that such service is performed outside of all the places of business of the enterprise for which such service is performed; and

C. Such individual is engaged in an independently established trade, occupation, profession, or business.