It has been asked on automotive forums nationwide; are the long rectangle European license plates legal? Well the answer is Yes and No and is well debated.
The facts are various states do not require a front license plate and it is perfectly legal to have the European license plate (Europlate) on the front of your car. This has been confirmed with various customers and DMV agencies nationwide. There are some good sites out there on the states that do not require a front license plate; our last count is 19 states that do not require a front plate.
There are also various petitions that are trying to have the front plate removed one notable one is Washington States RCW 46.16.240 as written The first sentence of RCW 46.16.240 currently reads,