If you are promoting a USA cycling event and are looking to provide registration data, this is the list of required fields:
Country (there may be Canadian riders)
Age (required for all races, especially masters; make sure to choose racing age on 12/31 of the current year for road or the following year for cyclocross.)
USA cycling license number (can only be numeric license number)
USA cycling racer category; choose CX or Road categories 1 to 5.
USA cycling rank (or CrossResults/RoadResults rank for BikeReg) used to sort bibs within category.
Event entered (absolutely required)
Email (used to contact racers that fail to return ChipCards and provide race results link)