Originally a competitor for Great Britain, Charles changed nationalities to Irish in 1992. However, on February 10, 2007, he relinquishd his status as an Irish rider and once again began representing Great Britain. Under the FEI rules he can never change back to Ireland and must wear the Union Jack until the end of his international career. 
- ↑ "Peter Charles returns to the Great Britain Show Jumping Team". FEI. 2007-02-10. http://www.hunterjumpernews.com/?p=2125. Retrieved 2008-09-27.
- ↑ Charles can't change his International status again