Anyone can march or enter a float. The only requirement is to wear some red, white, and blue, and bring a radio tuned to WILI (1400-AM). American flags are optional, but encouraged. There is no "official" theme for the parade.
Formation for the Boom Box Parade starts at Jillson Square on Main Street around 9:00 on July 4th. No pre-registration is necessary. The parade runs seven tenths of a mile west on Main Street to Memorial Park.