Car Seat Clinic – Saturday, May 17th The Smithfield Police Department will be conducting car seat clinics throughout the year. If you would like to schedule an appointment please call the Community Policing Unit 231-2500, ext. 202. More information on SPD Car Seat Installation Clinics here. For more information on child safety seats, please visit www.nhtsa.gov/Safety/CPS Taking appointments for Saturday, May 17th, from 8:00 a.m.-12:00 p.m. Call 231-2500, ext. 202.