The Miami Valley Regional Planning Commission sponsors the local RIDESHARE Program which is available for FREE to anyone who lives, works or attends college or school in Montgomery, Greene, Miami, Preble, Darke and Clinton Counties. When you register for RIDESHARE, we will try to match you with others who live and work (or attend college/school) near you. You'll receive a match list of people who have similar schedules and destinations. You can call them and make arrangements to form a carpool. Remember, just by sharing the ride with one other person, you can cut your commuting costs in half.