A new Texas law requires schools to hang posters of the national motto "In God We Trust" in every building on their campuses if they donate the posters to charity.

The Texas legislature passed a bill last year that requires campuses to display a "durable poster or framed copy of the United States national motto" in a "conspicuous place"

The law only applies if the posters are donated to the schools, but conservative groups are already donating signs to schools in the state.

Each poster must have an American flag "centered under the motto" and the state flag of Texas.

Both K-12 and higher education are covered by the law.

One of the co-authors of the bill said it was a great opportunity to display the national motto at schools.

The national motto "asserts our collective trust in a god" was celebrated by a Texas state senator.

The law's opponents told The Guardian that it makes Christianity compulsory in public schools.

It's a violation of the separation of church and state. They are part of the larger Christian nationalist project, according to the director of strategic communications at Jews for Racial and Economic Justice.

The Council on American-Islamic Relations told the outlet that the posters could encourage discussions among Texas students about their various faiths.

Representatives for Hughes and Oliverson didn't reply immediately.

Several other states have required or allowed schools to display signs with the words "In God We Trust" over the past few years, according to Forbes.

The Texas law requiring schools to display the national motto in a "conspicuous place" was signed by Rick Scott.

The Texas law came as support for Christian nationalism grew on the right.