EM&V (evaluation, measurement, and verification) plays many critical roles in planning, developing, and deploying energy efficiency utility system resources—and those resources are evolving. This report identifies the states that are showing policy and institutional leadership in EM&V and gives examples of what they are doing. We then discuss three topics that have recently received attention in the industry: deemed savings and technical reference manuals (TRMs), common practice baselines (CPBs), and advanced metering-based measurement and verification (aka M&V 2.0). We include case studies for each topic and conclude with a discussion of major challenges facing the EM&V field.