A data dictionary is provided below to assist users working with the downloadable CSV files. Please note that each file contains multiple “snapshots” of vehicle registrations and that an understanding of the DMV snapshot fields is necessary to perform any aggregations of the data.
About the Electric Vehicle Registration Data Format
With the sharing of these data, we have to balance the (potentially competing) needs to make the data accessible, consistent across states, and flexible. States are not consistent in how they can share these data, so we’re not able to make the datasets completely apples-to-apples.