A group of Republican senators is calling for a television rating system that warns parents about LGBTQ content in children’s TV shows.

Senators Mike Brown (R-IN), Roger Marshall (R-KS), Mike Lee (R-UT), Kevin Kramer (R-ND) and Steve Danes (R-MT) signed double-sided letter written to the chairman of the TV Parents’ Recommendations Monitoring Board.

Television parenting guidelines were created in 1996. TV ratings, including TV-G, TV-PG and TV-MA, are usually displayed at the top left of the screen when the TV show begins.

The senators wrote in a letter: “In recent years, topics of a sexual nature have become aggressively politicized and promoted in children’s programs, including irreversible and harmful experimental treatments for mental disorders such as gender dysphoria.”

They go on to say, “To this end, we strongly encourage you to update your guidelines for parents on television and make sure they are aware of best practices that help inform parents about this disturbing content.”

The senators asked the board to respond to their request by May 18.

The letter came after Florida passed the so-called “Don’t Tell Gays” law, which prohibits teachers from teaching sexual orientation or gender identity in elementary schools.