Since the 1970s, the college town of Ann Arbor, Michigan, has enacted some of the most lenient laws on marijuana possession in the United States. These include measures approved in a 1971 city-council ordinance, a 1974 voter referendum making possession of small amounts of the substance merely a civil infraction subject to a small fine, and a 2004 referendum on the use of medical marijuana. The passage of the Michigan Regulation and Taxation of Marihuana Act in November 2018 has made recreational marijuana legal not only in Ann Arbor but throughout the entire state.