From the FAA...
National regulations and practices concerning
facilitation of international air transport are being
carried out at all international airports as far as
possible in accordance with the provisions set forth in
the Standards and Recommended Practices of
Annex 9 to the Convention on International Civil
Aviation. Differences from certain Annex 9 provisions
exist only in those cases where it has not yet
been possible to amend national legislation accordingly.
Continuous efforts are being made to eliminate
these differences. (my bold)
Clearly the FAA agree with the principal that global standarization is in everyone's interest; unlike the few vociferous posters here who feel that the USA has a right to run the show any way they choose in their home region.