(CNN) - Insurance companies in Illinois will now have to cover EpiPen injectors for kids.
Gov. J.B. Pritzker signed a law Tuesday requiring insurance policies to pay for EpiPens meant for people who are 18 years old or younger.
EpiPens can stop an allergic reaction and save lives, but they cost families about $600 per injector. That price has increased dramatically in the last 10 years.
The governor says the measure is a big step forward in protecting children and families.
Illinois is the first state to mandate EpiPen insurance coverage for children.
The new law takes effect Jan. 1.