[Code of Federal Regulations] [Title 41, Volume 2] [Revised as of July 1, 2005] From the U.S. Government Printing Office via GPO Access [CITE: 41CFR101-30.403-2] [Page 146] TITLE 41--PUBLIC CONTRACTS AND PROPERTY MANAGEMENT CHAPTER 101--FEDERAL PROPERTY MANAGEMENT REGULATIONS PART 101-30_FEDERAL CATALOG SYSTEM--Table of Contents Subpart 101-30.4_Use of the Federal Catalog System Sec. 101-30.403-2 Management codes. For internal use within an agency, alphabetic codes excluding letters ``I'' and ``O'' may be prefixed or suffixed to the national stock number as CM7520-00-123-4567 or 7520-00-123-4567CM, as required for supply management operations. Numeric codes shall not be affixed immediately adjacent to or as a part of the national stock number, nor shall codes be intermingled in the national stock number. [41 FR 11309, Mar. 18, 1976] [[Page 147]]