215 ILCS 5/131.12
The courts of this State are hereby vested with jurisdiction over every person not resident, domiciled, or authorized to do business in this State who files a statement with the Director under Section 131.4, and over all actions involving such person arising out of violations of Sections 131.4, 131.5, 131.6, or 131.11, and each such person is deemed to have performed acts equivalent to and constituting an appointment by such a person of the Director to be his true and lawful attorney upon whom may be served all lawful process in any action, suit or proceeding arising out of violations of Sections 131.4, 131.5, 131.6, or 131.11. Copies of all such lawful process must be served on the Director and transmitted by registered or certified mail by the Director to such person at his last known address.
215 ILCS 5/131.12