The Department of Energy has broad responsibility for developing and supporting the implementation of energy policies that serve the public interest. Ensuring that timely and accurate data on key subjects is widely available to the public is one of those responsibilities. With that responsibility in mind, the Office of Electricity Delivery and Energy Reliability's (OE’s) Transmission Permitting and Technical Assistance (TPTA) Division releases an Annual U.S. Transmission Data Review, its compilation of transmission-related data focusing on six areas: transmission infrastructure, transmission reliability, transmission utilization, transmission constraints, transmission planning, and economic congestion. This data, which is gathered from publicly-available sources, is used to inform various DOE analyses, including OE’s triennial transmission congestion studies. The 2018 Annual U.S. Transmission Data Review is available HERE.