This presentation will introduce the LPPD technique of the Concept Paper. This document is the summation of the “study period” in LPPD. The Chief Engineer and a small cross-functional team expend substantial effort, typically over a period of months, to define the requirements of the project. The Concept Paper is the essential guide for the project that can enable effective and efficient development. As applied in LPPD the Concept Paper has several useful features not common in other Project Requirements documents. In this session we will identify the importance of the Concept Paper in development, briefly outline the contents of the Concept Paper, and provide guidance on how to complete its several sections using an example.