Wyoming does not require drivers to carry Uninsured Motorist (UM) coverage, but you'd be wise to consider paying a little extra for it. According to a 2007 study by the Insurance Research Council, as many as 9% of the state's drivers are uninsured, and UM coverage is the only way to make sure you're protected if you're in an accident with one of those people. Major insurance companies have offices in Cheyenne, Casper, and Laramie. For more information on auto insurance requirements in Wyoming, contact the Wyoming Insurance Department (http://insurance.state.wy.us/).