The below Extraordinary rule change proposed by the USEF Endurance Technical Committee was approved. The result is that Endurance will be exempt from needing FEI or National passports for 1* and 2* events.
CHAPTER 8 - EXHIBITORS, RIDERS, DRIVERS AND HANDLERS
GR802 Duties. [Chapter 8. Exhibitors, Riders, Drivers and Handlers]
[Note: This is a revision to a rule change scheduled to take effect
6. U.S. Competitors competing in their own country in an FEI- sanctioned event, not requiring an FEI Passport, must present a valid USA National Passport or a valid FEI Passport. Exception: Endurance Minor Events.