International Municipal Signal Association www.IMSAsafety.org United States Department of Transportation www.dot.gov The Manual on Uniform Traffic Control Devices (MUTCD) www.mutcd.fhwa.dot.gov Institute of Transportation Engineers www.ite.org Federal Highway Administration www.fhwa.dot.gov Intertek Testing Services (ETL) www.etisemko.com Introducing our new ABS Universal Backplate, developed in response to overwhelming demand to simplify backplate installations.  Click here for more information on the Universal Backplate