This document from the Federal Government - page 2 states:
(Please note: if you hold an airman certificate based on a foreign license (14 CFR §§ 61.75, 63.42), you must comply with the current procedures for obtaining a replacement certificate. You must have a valid verification letter of authenticity on file in the Airmen Certification Branch. You will need to contact a Flight Standards District Office or an International Field Office in person, submitting a copy of your verification letter of authenticity, a completed FAA Form 8710-1 and positive identification.
Please could anyone clarify where one can request a verificaction letter of authenticity and the location of International Field Offices.
I really do not want to fly to the USA.