Others
State governments offer some incentives that are not captured in the categories above.
For example, Delaware provides a vehicle-to-grid energy credit in which retail customers
can receive electricity credits for energy discharged from an electric vehicle battery to
the grid at the same rate that the customer pays to charge the battery (AFDC, 2014c).
As another example, in D.C., some certified clean fuel vehicles are exempt from measures
that restrict vehicle usage based on temporal considerations, such as time-of-day and
day-of-week restrictions and commercial vehicle bans (AFDC, 2014c).