The document discusses concepts and principles related to preparation of Project Procurement Management Plans (PPMPs) and Annual Procurement Plans (APPs) in the Philippine government context. It covers the phases of property and supply management including acquisition, utilization, and disposition. It explains the key actors and stages involved in procurement planning like needs identification, budgeting, bidding and selection. The document provides details on requirements, timelines and guidelines for PPMP and APP preparation as established by the Government Procurement Reform Act and its Implementing Rules and Regulations.