To address the many challenges affecting small and rural emergency departments (EDs), the Federal Office of Rural Health Policy (FORHP) in the Health Resources and Services Administration established the Evidence-Based Tele-Emergency Network Grant Program (EB TNGP). In 2014, this program awarded grants to six ED-based telehealth (tele-ED) networks to expand the delivery of tele-ED in rural hospitals across the U.S. In 2015, FORHP awarded a cooperative agreement to the Rural Telehealth Research Center to customize a standardized set of measures to the six EB TNGP grantees and then to systematically collect data from them on all of their tele-ED cases during a 26-month period. This brief details multi-project work to identify the standardized set of measures appropriate to tele-ED, create an Excel-based tool, termed the Tele-Emergency Performance Assessment Reporting Tool, and systematically collect data from the grantees. The resulting data repository of 4,324 tele-ED cases has been analyzed to yield five published articles to date with more in development.