[Code of Federal Regulations] [Title 48, Volume 4] [Revised as of October 1, 2006] From the U.S. Government Printing Office via GPO Access [CITE: 48CFR313.306] [Page 30] TITLE 48--FEDERAL ACQUISITION REGULATIONS SYSTEM CHAPTER 3--HEALTH AND HUMAN SERVICES PART 313_SIMPLIFIED ACQUISITION PROCEDURES--Table of Contents Subpart 313.3_Simplified Acquisition Methods. Sec. 313.306 SF 44, Purchase Order--Invoice--Voucher. (d) Since the Standard Form (SF) 44 is an accountable form, a record shall be maintained of serial numbers of the form, to whom issued, and date issued. SF 44's shall be kept under adequate lock and key to prevent unauthorized use. A reservation of funds shall be established to cover total anticipated expenditures prior to use of the SF 44.