United Midwestern Promoters - UMP is an open wheel modified sanctioning body. - http://www.kraze.com/umphome.html
USMTS - United States Modified Touring Series, including forum, schedule, results, points, and driver information. Also includes information about the United States Racing Association. - http://www.usmts.com/
USA Modifieds - News, schedule, driver profiles, point standings and rules. - http://www.usamodifieds.com/
S.M.A.R.T. - Southern Modified Auto Racing Teams sanctioning body, based in Kernersville, North Carolina. - http://www.southernmodified.com/