RTA ADA Paratransit – requires 2-part medical certification; person must live within 3/4 mile of a fixed bus route. 1-800-270-9553 for application. RTA General Paratransit or Curb-to-Curb – service is provided anywhere within Howard County, with trip purposes limited to medical appointments, senior centers, social service agencies, employment and colleges. Service is available Monday through Friday 8:00 AM to 5:00 PM. In addition, service to medical appointments at designated Baltimore City hospitals is available on Mondays, Wednesday, and Fridays. Limit of one round trip per day. Certification required. Advanced reservations required 1-800-270-9553.