Every year NREL prepares an Environmental Performance Report meeting the requirements of an Annual Site Environmental Report (ASER) per DOE Order 231.1B. The report is written to inform the public, regulators, and other stakeholders of NREL’s environmental performance. The report provides updates on NREL's environmental programs, and summarizes NREL’s environmental data, environmental management system performance, and NREL’s compliance with applicable DOE, federal, state, and local regulations.