Nov 5 (Reuters) - The Motion Picture Association has

sent a cease-and-desist letter to Meta, objecting to

the social media platform's use of filters inspired by the PG-13

movie rating system for content moderation on Instagram for

users under 18.

The trade group said Meta's claim that its filters align

with the PG-13 rating is "literally false and highly

misleading," because the Facebook parent's automated systems do

not follow the curated, consensus-based process used for the

film rating system.

Last month, Meta said its Instagram platform will limit what

users under 18 can see on the platform using filters inspired by

the PG-13 movie rating system.

The letter to Jennifer Newstead, Meta's chief legal

officer, on October 28 asked Meta to immediately disassociate

Teen Accounts and AI tools from the rating system and to refrain

from any use of the PG-13 mark, seeking a resolution by November

3.

The MPA said PG-13 is a registered certification mark

and that unauthorized use by Meta could erode public trust in

its rating system, according to the letter reviewed by Reuters

on Wednesday.

A Meta spokesperson said the company hopes to work with the

MPA and made the change to address parents' concerns. The

company said it never claimed a partnership with the MPA or that

its content had been officially rated by the association.

Meta has stepped up safety measures on its social media

platforms and artificial intelligence avatars after facing

criticism from advocacy groups and lawsuits alleging the company

failed to protect young users from harmful content.

Last month, Meta said that it will let parents disable

teens' private chats with AI characters.

U.S. regulators have increased scrutiny of AI companies over

potential harm from chatbots. In August, Reuters reported that

Meta's AI rules allowed provocative conversations with minors.