Children's Internet Protection Act

The Children's Internet Protection Act (CIPA) is an American statute, passed in 2000, that restricts underage minors from accessing obscene or indecent Internet content via computers in facilities that receive federal funding, such as public schools and libraries. The statute primarily requires those facilities to utilize software filters and similar technology on behalf of underage patrons, but to disable those filters per the request of an adult user.

Source: Wikipedia — Children's Internet Protection Act (CC BY-SA 4.0)