If you have a non-U.S. travel document with a U.S. birthplace, you may face trouble entering U.S. territory unless you can demonstrate that you’re no longer a U.S. citizen. But the State Department might take more than a year from the time of your final visit to the consulate to give you a CLN. Worse yet, there’s always the possibility that they’ll find some legally dubious reason to “reject” your renunciation. So would-be former U.S. Persons could be stuck for a long period as “Schrödinger citizens” — neither citizens nor non-citizens, with no proof whatsoever of your status.
Which leads to the question: what if you need to go to the U.S. while you’re stuck in this limbo? Eido Inoue, who comments here on occasion, just wrote a post about this very topic:
For Americans, there is a time when you apply for relinquishment of your U.S. citizenship and you send your U.S. passport to the State Department for processing. However, as you as still technically a U.S. citizen until the U.S. State Department has issued you a CLN (Certificate of Loss of Nationality), you are issued a letter from the embassy explaining that you are in the process and your U.S. passport is in possession of the State Department. This letter is solely for travel to the United States, and America requires those who are U.S. nationals to use their U.S. passport when travelling to/from the United States, regardless of what other passports or nationalities you may possess.
