[Code of Federal Regulations] [Title 48, Volume 1] [Revised as of October 1, 2005] From the U.S. Government Printing Office via GPO Access [CITE: 48CFR1.603-4] [Page 19] TITLE 48--FEDERAL ACQUISITION REGULATIONS SYSTEM CHAPTER 1--FEDERAL ACQUISITION REGULATION PART 1_FEDERAL ACQUISITION REGULATIONS SYSTEM--Table of Contents Subpart 1.6_Career Development, Contracting Authority, and Responsibilities Sec. 1.603-4 Termination. Termination of a contracting officer appointment will be by letter, unless the Certificate of Appointment contains other provisions for automatic termination. Terminations may be for reasons such as reassignment, termination of employment, or unsatisfactory performance. No termination shall operate retroactively.