[Code of Federal Regulations] [Title 49, Volume 1] [Revised as of October 1, 2003] From the U.S. Government Printing Office via GPO Access [CITE: 49CFR1.21] [Page 9-10] TITLE 49--TRANSPORTATION Subtitle A--Office of the Secretary of Transportation PART 1_ORGANIZATION AND DELEGATION OF POWERS AND DUTIES--Table of Contents Subpart B_Office of the Secretary Sec. 1.21 Purpose. This subpart establishes the basic organizational structure, spheres of primary responsibility, and lines of authority in the Office of the Secretary. It also describes the relationships between the Office of the Secretary and [[Page 10]] the operating administrations, and provides for succession to the position of Secretary in case of need.