In 1994, the Bronx Household of Faith (an urban church) filled out an application to rent out space at a New York City public school for its Sunday morning services. Their application was rejected because of something now known as “Standard Operating Procedure” (SOP) §5.11.
No outside organization or group may be allowed to conduct religious services or religious instruction on school premises after school. However, the use of school premises by outside organizations or groups after school for the purpose of discussing religious material or material which contains a religious viewpoint or for distributing such material is permissible.
So it was okay for groups to rent out the space to teach kids about religion… but if it became too church-like, that was a no-no? (What was the difference? Saying “Amen”?)