Protecting Kids on Social Media Act or HB 1891 is an American law that was created by William Lamberth of Sumner County, Tennessee and was later enacted by Tennesse's Governor on May 2, 2024.

[3] Every social media company must verify the age of new users after the law takes effect and if the user had created an account before the law took effect, they must verify the age of the person attempting to access the account within 14 days and if the new user or the user who originally owned an account is under 18 years of age they must get parental consent and the third party or social media company must not retain the data from the process from age verification or obtaining parental consent.

The law is enforced by the Attorney General of Tennessee and takes effect on January 1, 2025.

[1][2] On October 3, 2024, the trade association NetChoice filed a lawsuit against Tennessee Attorney General Jonathan Skrmetti in the Middle District Court of Tennessee, claiming that the law violates the First Amendment.

[9] As of 7:40 PM Eastern US time on December 31, 2024 (just 4 hours and 20 minutes before the law will take effect in the counties of Tennessee that are in the Eastern Time Zone), this Tennessee social media law does not seem to have been blocked from going into place, despite a similar Tennessee law requiring age verification for pornography having been blocked earlier in the day.