New technologies are rapidly changing the way we use energy in our homes and businesses. But in many U.S. states, the legal and regulatory status quo includes barriers to adopting these technologies. This toolkit is a free resource for legislators and policymakers who want to address these barriers and clear the way for building modernization in their states. Clicking on each of the seven topic areas below, you’ll find policy background, resources and, most importantly, detailed exploration of legislative options your state could pursue, drawing on examples from across the country. Proactive policy action can ensure that buildings are modernized in a way that produces health, environmental and economic benefits for everyone.