Sign R7-112a “ELECTRIC VEHICLE PARKING (TIME LIMIT, PART-TIME)” from the FHWA memorandum on June 17, 2013, intended to be added to the next revision of the <i><a href="https://en.wikipedia.org/wiki/Manual_on_Uniform_Traffic_Control_Devices" class="extiw" title="w:Manual on Uniform Traffic Control Devices">Manual on Uniform Traffic Control Devices</a></i>, with text converted to paths for display.
Federal Highway Administration
<a rel="nofollow" class="external text" href="https://mutcd.fhwa.dot.gov/resources/policy/rsevcpfmemo/">Regulatory Signs for Electric Vehicle Charging and Parking Facilities</a><a rel="nofollow" class="external autonumber" href="https://mutcd.fhwa.dot.gov/resources/policy/rsevcpfmemo/rsevcpfmemoattachmt.pdf#page=4">[1]</a>