The Illinois Secretary of State has issued a directive to all Illinois automobile dealers and auctioneers that requires them to place a stamp on the vehicle's title whenever they sell a vehicle to dealers or wholesalers outside of Illinois. The stamp must be in at least 36-point font and be placed on the front of the title and on the back in the reassignment area. The statement must read "NOT FOR RESALE WITHIN ILLINOIS" or "NOT FOR RETAIL SALE WITHIN ILLINOIS."
READ ILLINOIS BULLETIN
Wisconsin dealers who obtain a title with this stamp will still be allowed to process the title (with the stamp on it) in Wisconsin when they sell a vehicle to a Wisconsin customer. However,
Wisconsin dealers cannot sell a vehicle with an Illinois stamped title to an Illinois customer or wholesaler, because they cannot title a vehicle in the dealership’s name and the Illinois Secretary of State won’t transfer ownership on a stamped title.
Wisconsin dealers should know before engaging in any dealer trade with an Illinois dealer or purchasing a vehicle at an Illinois auction, that they probably will not be able to sell that vehicle to an Illinois resident or wholesaler, because the buyer will not be able to title the vehicle in Illinois. Also,
it is recommended that when advertising a vehicle with an Illinois stamped title, dealers should include a disclosure stating, “law prohibits this vehicle from being sold to Illinois residents.”
Further, the state of Illinois is no longer permitting the use of temporary registration permits (TRP), 7-day permit, or 30-day drive away permits. Therefore, if you purchase a vehicle at an Illinois auto auction or dealer trade, etc., you will have to utilize a Dealer License plate or Transporter plate to remove the vehicle from Illinois.
The "NOT FOR RESALE IN ILLINOIS" statement is a temporary stamp on the title, not a permanent brand, and is an attempt by the Illinois secretary of state to prevent and combat curbstoning and related fraudulent, unethical behavior.