State and utility partnerships can advance building energy codes. Utilities have program funding and expertise working with customers, while state code offices lack resources. A virtuous cycle could be created where codes and programs reinforce more efficient homes and buildings. Recent trends show the Northeast leading in energy efficiency investments and goals. States are recognizing codes as a cost-effective savings opportunity. Practical partnerships are occurring in Massachusetts, Connecticut, Vermont, New York, and Maryland between states and utilities to support code development, compliance, training, and technical analysis with goals of capturing more quantifiable efficiency savings.