US has a great deal of racing around the country, many circuits and also a few clubs that organize marshals. Traditionally, the uniform is white in color and up to each marshal to purchase their own overalls or pants/shirts. However some clubs issue their own overalls for specific events like F1 at COTA or Indianapolis events.
SCCA F&C corner worker uniform in White.
USAC Flag & Track marshal at Indianapolis Motor Speedway in Blue.
Flag & Track marshal at Circuit of the Americas (COTA) in Blue.
Click here to see more International Marshal Spotter Guides.
More information will be updated as it becomes available.