CA SB388

Requires social media platform companies with 25 million or more unique monthly visitors to report annually to the Department of Justice by April 1 on content management efforts and negative externalities associated with their business activities.

Mandates reporting include money and labor hours spent preventing harmful content, internal accounting of negative externalities, statistics on content reviewed and removed, and categories of content targeted for removal.

Defines "negative externalities" as original and shared posts classified as obscene, lewd, harassing, excessively violent, or otherwise objectionable content on the platform.

Requires platform companies to develop policies to assess and mitigate negative externalities and establish an "acceptable use" policy for users.

Directs the Department of Justice to make reported information available to consumers and requires platforms to also report to the Legislature and California Privacy Protection Agency.