The Mackinac County Sheriff's Department and the Sault Ste. Marie Tribe of Chippewa Indians will host off-road vehicle (ORV) safety classes at Little Bear East Arena in St. Ignace Monday, July 23, and Tuesday, July 24, from 9 a.m. to noon. Participants must be 11 years or older and can earn their ORV safety certificate free of charge. Preregistration is not required.