A team at Schulte Roth & Zabel has filed a Constitutional challenge to an Oklahoma law limiting certain instruction on race and gender in the state’s schools.

The lawsuit, filed Tuesday alongside co-counsel at the American Civil Liberties Union, its Oklahoma chapter and the Lawyers’ Committee for Civil Rights Under Law, claims that HB 1775, which was signed into law earlier this year, severely restricts the way public school teachers and students can learn and talk about race in the classroom. The law also bars the state’s universities from requiring students to undergo sexual harassment or diversity training.