U.S. Department of State
Part II: U.S. Department of State has Allowed (Starting in at least 2013) USCs to Keep their U.S. Passports After Oath and Prior to Receiving CLN
See the first post on this topic: U.S. Department of State has Allowed (Starting in at least 2013) USCs to Keep their U.S. Passports After Oath and Prior to Receiving CLN, Posted on March 17, 2015
A U.S. citizen is required to have a U.S. passport to enter the U.S., according to the immigration law regulations 22 CFR § 53.1 require that a U.S. citizen have a U.S. passport to enter or depart the United States. The relevant part of the regulations is § 53.1(a) which provides as follows:
Passport requirement; definitions.
The U.S. Department of State does not always provide any specific document, e.g., a certified copy of any of the following documents, after you take the oath of renunciation:
Not having a U.S. passport can of course be problematic if the individual needs to travel in or out of the U.S. for a period of time after taking the oath, but before receiving the CLN. See, The Importance of a Certificate of Loss of Nationality (“CLN”) and FATCA – Foreign Account Tax Compliance Act, Posted on June 1, 2014
Fortunately, I have been told by several Chiefs of American Citizen Services in different U.S. Consulates and U.S. Embassies that they have been advised from Washington that they are NOT required to physically take the U.S. passport, until after the issuance of the CLN. This now seems to be consistent practice throughout the world, and most all Chiefs of American Citizen Services use this approach, based upon my personal experience with different clients.