[Code of Federal Regulations] [Title 29, Volume 9] [Revised as of July 1, 2004] From the U.S. Government Printing Office via GPO Access [CITE: 29CFR4001.1] [Page 732] TITLE 29--LABOR CHAPTER XL--PENSION BENEFIT GUARANTY CORPORATION PART 4001_TERMINOLOGY--Table of Contents Sec. 4001.1 Purpose and scope. Sec. 4001.1 Purpose and scope. 4001.2 Definitions. 4001.3 Trades or businesses under common control; controlled groups. Authority: 29 U.S.C. 1301, 1302(b)(3). Source: 61 FR 34010, July 1, 1996, unless otherwise noted. This part contains definitions of certain terms used in this chapter and the regulations under which the PBGC makes various controlled group determinations.