325 ILCS 65/20: Parental controls required.

(a) An Internet access provider must make a parental control that satisfies the requirements of this Section available to each subscriber in this State. An Internet access provider is not, however, required to provide a parental control that is not reasonably and commercially available for the technology that a subscriber uses to obtain access to the Internet.

(b) A parental control must allow a subscriber, in a commercially reasonable manner, to do one of the following:

(1) Block a child's access to websites by specifying prohibited websites or by selecting a category of sites to block.

(2) Restrict a child's access exclusively to websites that the subscriber approves or a category of websites that the subscriber approves.