NO3RR targeting NH3/NH4 + production is a dynamic area of research, where the performance of electrocatalysts in a wide range of conditions is of interest. We offer suggestions for model systems of study, parameters to report and control, and approaches to take into account to better enable comparison across studies and ultimately drive understanding of this complex reaction network. We note, however, that many unanswered questions regarding the mechanisms of NO3RR, complexities of the active site, and role of the electrical double layer still necessitate fundamental studies that investigate beyond these suggestions.