In partnership with Feld Motor Sports and MX Sports Pro Racing, the American Motorcyclist Association (AMA) has announced the 2010 national numbers for pro-licensed riders in the Monster Energy AMA Supercross, an FIM World Championship, and the Lucas Oil AMA Pro Motocross Championship.

National numbers in the disciplines of Supercross and Motocross are assigned by the following process:

No. 1: The current series champion must run the No. 1 plate in that series.

Nos. 2-9: A champion from the previous competition year may choose a permanent single-digit number if available, with the exception of No. 4. The AMA has reserved No. 4 for exclusive use by Ricky Carmichael through 2011.

Nos. 10-999: Riders who finish in the top 10 in combined championship points in Supercross, Motocross 250 and Motocross 450 competition in the previous competition year have the option to choose a career national two-digit number, if available. These riders, by their option, may instead select a three-digit national number.

Riders who finish outside the top 10 but in the top 100 in combined championship points in Supercross, Motocross 250 and Motocross 450 competition in the previous year will be assigned consecutive two-digit numbers from the available supply until that supply is exhausted.

A comparison of riders' best moto finishes breaks a tie, unless one of those riders competed in only one discipline. In the case of a tie between a rider who rode one discipline (e.g., Supercross) and a rider who rode both disciplines, the tie is broken in favor of the rider who rode both series.

A rider who fails to earn at least one championship point during the season preceding the current season will lose his or her career number and be issued a new number based on current points. Special consideration is given to a rider if an injury impeded participation the previous year.

Note: Lower three-digit competition numbers (e.g., 100-125) are traditionally held for past or current champions from non-U.S. series who participate in a Monster Energy AMA Supercross, an FIM World Championship, or a Lucas Oil AMA Pro Motocross event.