Gov. Gavin Newsom signed Senate Bill 678 into law on September 1.

Senate Bill 678 requires a person paid by a committee to post content online supporting or opposing a candidate or a ballot measure to include a disclaimer stating they were paid to make the post.

This bill targets “influencers” and follows California’s recent trend on curtailing social media’s influence on elections.

The bill will become effective January 1, 2024.