The U.S. federal government only has constitutional jurisdiction to establish holidays for itself, for certain federally chartered and regulated businesses (such as federal banks), and for Washington, D.C.; otherwise, constitutional authority to create public holidays is a power reserved to the states. Most states also allow local jurisdictions (cities, villages, etc.) to establish their own local holidays. However, as a general rule other institutions, including banks, post offices, and schools, may be closed on federal holidays.