This document summarizes the monitoring requirements identified in the Record of Decision (ROD) for the Pacific Northwest Forest Plan and presents the key questions the future monitoring program should strive to answer. The key questions, developed from the standards and guidelines and the objectives of the ROD and the Forest Plan, are broad but do illustrate the types and amounts of data that are needed. The document was organized around the plans' three types of monitoring - implementation, effectiveness, and validation - and the three strategies of the Forest Plan, namely, Late-Succession/Old Growth Maintenance, Aquatic Conservation, and Socioeconomic Sustainability.