(c) The Director, Office of Small and Disadvantaged Business Utilization (OSDBU) shall be a member of the Senior Executive Service and appointed by the Secretary of Transportation. (15 U.S.C. 637,644,and. The SBS will assist the OSDBU Director in carrying out the functions and duties prescribed in FAR 19.201(d). A list of DOT SBS is provided at OSDBU's website at https://www.transportation.gov/osdbu/procurement-assistance/talk-dot-small-business-specialist.