As a leading manufacturer of performance parts, Ford Motor Company recognizes a special responsibility regarding environmental concerns. Ford Racing is committed to a program of performance parts development that allows motorsport enthusiasts to modify their vehicles and meet emission requirements.
Using guidelines established by the State of California for aftermarket parts used in vehicles driven on public highways, this website identifies parts that are acceptable for use on emission-controlled motor vehicles using the “50-States Street Legal” logo pictured below. Parts without the logo are intended for off-road and competition purposes only.
“Street Legal” by Executive Order
These add-on or modified parts are considered “Street Legal” because they have an Executive Order from the State of California. Ford Racing has demonstrated through emission testing that the use of these parts does not adversely affect vehicle emissions of production vehicles with certified emission control systems.