As of April 11, 2011 the US Department of Transportation Federal Highway Administration has given interim approval to use the alternative Electric Vehicle Charging General Services symbol signs on all roadways in Oregon. A link to the interim approval letter is below.
Interim Approval letter
In addition the FHWA requires ODOT to maintain a list of all EV Charging Symbol Signs installed in Oregon regardless of jurisdiction or maintenance responsibility. If you are installing the EV Charging symbol sign on your facilities, please fill out the information form below and submit it to: firstname.lastname@example.org
Information form (Excel)
Information form (PDF)