[Code of Federal Regulations] [Title 5, Volume 1] [Revised as of January 1, 2002] From the U.S. Government Printing Office via GPO Access [CITE: 5CFR300.601] [Page 127] TITLE 5--ADMINISTRATIVE PERSONNEL CHAPTER I--OFFICE OF PERSONNEL MANAGEMENT PART 300--EMPLOYMENT (GENERAL)--Table of Contents Subpart F--Time-In-Grade Restrictions Sec. 300.601 Purpose. Source: 56 FR 23002, May 20, 1991, unless otherwise noted. The restrictions in this subpart are intended to prevent excessively rapid promotions in competitive service General Schedule positions and to protect competitive principles. They provide a budgetary control on promotion rates and help assure that appointments are made from appropriate registers. These restrictions are in addition to the eligibility requirements for promotion in part 335 of this chapter.