ATTACHMENT A PROGRESS REPORT: PRINCIPLES AND OPERATING STRATEGIES FOR STAGED REPOSITORY SYSTEMS -- 1. ADAPTIVE STAGING -- 1.1 Provisional Conceptual Framework of Adaptive Staging -- 1.2 Working Definition of Adaptive Staging -- 1.3 Essential Attributes of Adaptive Staging -- 2. POTENTIAL BENEFITS AND DRAWBACKS OF ADAPTIVE STAGING -- 2.1 Potential Benefits of Adaptive Staging -- 2.2 Potential Drawbacks of Adaptive Staging -- 2.3 Identifying Benchmarks for Adaptive Staging Approaches -- 3. WORK IN PROGRESS ON THE RELATIONSHIP BETWEEN ADAPTIVE STAGING AND THE U.S. REPOSITORY PROGRAM -- 4. CONCLUDING REMARKS OF THIS PROGRESS REPORT -- REFERENCES -- ATTACHMENT B EXAMPLES OF STAKEHOLDER INPUT IN REPOSITORY DEVELOPMENT -- ATTACHMENT C STATEMENT OF TASK -- ATTACHMENT D COMMITTEE ON PRINCIPLES AND OPERATIONAL STRATEGIES FOR STAGED REPOSITORY SYSTEMS -- Staff -- ATTACHMENT E LIST OF REVIEWERS.