Acquisition Guide Chapter 7.1 is revised to remind the planner when planning for an interagency acquisition to perform a determination of best procurement approach, business case analysis and/or Economy Act determinations and findings, as applicable, in accordance with Federal Acquisition Regulation (FAR) 17.5 Interagency Acquisitions. Revisions to the guide chapter add to references FAR 17.5 and related guide chapter 17.1. Also, two revisions in the chapter are identified by vertical lines in the left margin on pages 11 and 14.