California Gov. Gavin Newsom signed three bills Tuesday to crack down on the use of artificial intelligence to create false images or videos in political ads ahead of the 2024 election.

A new law, set to take effect immediately, makes it illegal to create and publish deepfakes related to elections 120 days before Election Day and 60 days thereafter. It also allows courts to stop distribution of the materials and impose civil penalties.

“Safeguarding the integrity of elections is essential to democracy, and it’s critical that we ensure AI is not deployed to undermine the public’s trust through disinformation -– especially in today’s fraught political climate,” Newsom said in a statement. “These measures will help to combat the harmful use of deepfakes in political ads and other content, one of several areas in which the state is being proactive to foster transparent and trustworthy AI.”