The Church of Jesus Christ of Latter-day Saints is a prolific builder of "Latter-day Saint" or "Mormon" temples. Latter-day Saint temples are reserved for performing and undertaking only the most holy and sacred of covenants and special of ordinances. They are distinct from meeting houses and chapels where weekly worship services are held. The temples are built and kept under strict sacredness and are not to be defiled. Thus, strict rules apply for entrance, including church membership and regular attendance. During the open-house period after its construction and before its dedication, the temple is open to the public for tours.