Axios Des Moines: The Iowa State Fair is enforcing a new rule this year that limits the size of scooters fairgoers are allowed to bring in, citing safety concerns. Some older fairgoers and people with disabilities say the new rule has become an unexpected burden that prevents them from using the mobility devices they already own. The new dimensions, 36 inches by 52 inches, were based on rules at other similar-sized events, a State Fair spokesperson said. Rental scooters are available for $65 a day.