The Motion Picture Association is asking Meta to stop referring to content shown to teen accounts on Instagram as “guided by PG-13 ratings,” saying it is misleading and could erode trust in its movie ratings system.

A lawyer on behalf of the MPA sent Meta Platforms a cease-and-desist letter asking the tech giant to “immediately and permanently disassociate its Teen Accounts and AI tools from the MPA’s rating system.”

Instagram had announced last month that its teen accounts will be restricted to seeing PG-13 content by default.

The MPA says Meta’s claims that its Teen Accounts will be “guided by” PG-13 ratings and that its Teen Account content settings are “generally aligned with movie ratings for ages 13+” are “false and highly misleading.” The association’s movie ratings, which range from G to NC-17, are done by parents who watch entire movies and evaluate them to come up with a rating.

“Meta’s attempts to restrict teen content literally cannot be ‘guided by’ or ‘aligned with’ the MPA’s PG-13 movie rating because Meta does not follow this curated process,” the association’s letter says. “Instead, Meta’s content restrictions appear to rely heavily on artificial intelligence or other automated technology measures.”

In a statement, Meta said it updated its teen content policies to be “closer to PG-13 movie standards — which parents already know” so they can better understand what teens see on Instagram.