No bracket just two self tapping screws through the bumper cap. If you live and park where parallel parking takes place don't put a bracket on your plate. The brackets get pressed into the bumper and will cut through the bumper cap and cause more damage than they are worth. A flat plate with two screws will survive parallel parking abuse.
As the OP lives in Oregon, I suggest a trip to Bi-Mart for the plastic mounting base and a plate frame like I did. The stock 2 holes can be used to mount the base to the bumper, but are slotted so you can make the plate sit higher or lower than stock. Then you stick the plate on, best with a frame over top of that. I think I'll take a pic of mine later and post it.