Secretary of State Marco Rubio has directed the State Department to freeze applications in the passport pipeline with "X" selected as the gender identifier, according to internal communications reviewed by ABC News.
The move follows President Donald Trump's executive order titled "Defending Women from Gender Ideology Extremism and Restoring Biological Truth to the Federal Government," which states that "it is the policy of the United States to recognize two sexes, male and female."
Applicants who call into the State Department's National Passport Information Center with questions are being told to wait for new guidance before applying if they can, which the center said will be made available "in the coming days."
The State Department declined to comment on the matter, saying it "does not comment on leaked internal documents."
The Biden administration introduced an option to select "X" instead of male or female on passport applications in 2022.
The State Department doesn't publish data on how many applicants have selected "X" since it was introduced, but the Williams Institute at the University of California, Los Angeles, estimated at the time that 16,700 people would apply for passports with the "X" identifier each year.