In 2003, Passy was a member of the OSCE Troika along with de Hoop Scheffer and Portugal's foreign minister, whose country will take over the OSCE chairmanship on 1 January 2005.
Passy je u 2003., zajedno s De Hoop Schefferom i portugalskim ministrom vanjskih poslova, čija će zemlja 1. siječnja 2005. preuzeti predsjedavanje, bio član OSCE Trojke.