[Code of Federal Regulations] [Title 5, Volume 1] [Revised as of January 1, 2008] From the U.S. Government Printing Office via GPO Access [CITE: 5CFR300.606] [Page 133] TITLE 5--ADMINISTRATIVE PERSONNEL CHAPTER I--OFFICE OF PERSONNEL MANAGEMENT PART 300_EMPLOYMENT (GENERAL)--Table of Contents Subpart F_Time-In-Grade Restrictions Sec. 300.606 Agency authority. An agency may expand on these restrictions consistent with the intent of this subpart or may adopt similar policies to control promotion rates of employees not covered by this subpart.