The U.S. will continue to allow American citizens with expired passports to return from abroad through March 31.
The temporary measure had been set to expire on Dec. 31.
In a Tuesday announcement, the State Department cautioned that the measure does not apply to travel from the U.S. to another country.
In addition, citizens who are abroad are not permitted to use an expired passport to travel to another country for any length of stay longer than an airport connection en route to the U.S. or a U.S. territory.
Travelers should confirm their eligibility for traveling on an expired passport prior to finalizing travel arrangements, the State Department said.