Secretary of State Jesse White says they'll have to pass several tests before they can get a temporary driver's license.
Governor Pat Quinn signed the new law Sunday, clearing the way for about 250-thousand immigrants to get temporary driver's licenses.
Lawmakers call the measure a big step toward improving road safety in Illinois.
According to the Illinois Highway Safety Coalition, unlicensed, uninsured drivers are involved in almost 80-thousand accidents in Illinois each year.
Unlicensed immigrant drivers cost 64 million dollars in damage claims alone.