||AmeriFlux is one of the DOE Office of Biological and Environmental Research’s (BER) best known and most highly regarded brands in climate and ecological research. AmeriFlux datasets, and the understanding derived from them, provide crucial linkages between terrestrial ecosystem processes and climate-relevant responses at landscape, regional, and continental scales. The Lawrence Berkeley National Laboratory (LBNL) AmeriFlux Network Management Project is working to enhance this important BER program. Our primary objectives are to (1) maximize the quality of AmeriFlux data and its usability by a broad community; (2) expand the network’s impact as a virtual facility for basic research and Earth System Model improvement; (3) foster innovative measurements; and (4) sustain and extend the long-term record of carbon, water, and energy fluxes and site metadata being collected by a cohort of AmeriFlux sites that span a spectrum of climate and ecological spaces across North America. To achieve these objectives, we will (1) provide enhanced technical support, including quality assurance/quality control and new data submission methods for the entire AmeriFlux network; (2) host a network website, organize the Annual Meeting, and conduct other outreach and community functions; (3) Support and guide the operation of 10–15 existing long-term AmeriFlux sites; (4) produce standardized gap-filled datasets and tools that will enable modeling, synthesis, and other research with AmeriFlux data; and (5) provide high-quality data and metadata to the Carbon Dioxide Information Analysis Center.