The church maintain no formal policy on facial hair for its general membership. However, formal prohibitions against facial hair are enforced for young men entering missionary service. Students and staff of the church-sponsored schools that make up the Church Educational System, such as Brigham Young University, are required to adhere to the Church Educational System Honor Code, which requires that men be clean-shaven. A beard exception is granted for "serious skin conditions", and for approved theatrical performances, but until 2015 no exception was given for any other reason, including religious convictions. In January 2015, BYU clarified that non-Mormon students who wish to have a beard for religious reasons, such as Muslims or Sikhs, may be granted permission after applying for an exception.