The State Transportation Department says fewer of us are buckling up. Missouri seatbelt usage is down for the first time in nine years – to 75.2 percent. Last year it was 77.4 percent. State Transportation Director Pete Rahn calls the figures disappointing and says they prove the need for Missouri to have a primary seat belt law. A University of Missouri study suggests seat belt usage would hit 90 percent if the state had primary enforcement and a $50 fine for not wearing the belt.