Originally Posted by
CaptYoda
R/T endorsement is required under ICAO and if you are ramp checked overseas the Inspector will ask for it.
U.S. Airman Certificates don't include the R/T endorsement and also they only state "English Proficient." The latter means you possess Level 4 proficiency which according to ICAO guidelines must be renewed every 4 years. Additionally, U.S. certificates have no expiration dates and there is no way of proving that you are current on the aircraft you are flying by looking at of your certificate.
So if you fly internationally it will be a good idea to have the FCC license and your proficiency details (sim check form, line check details etc).
While I agree you should have your FCC license with you (and I do) I fly international freight now, flew int'l pax for years before that and even lived and worked overseas for several years. I have never in 30 years been asked to produce an FCC license or Sim check information and I have been line checked in some pretty out of the way places.