CBP Enforces Binary Sex Codes and Enhanced US Passport Validation in APIS


Sex Field Requirements: Effective Oct. 14, 2025, CBP systems will only accept “M” (Male) or “F” (Female) in the sex field of APIS transmissions. Any other characters will result in an “X Response-Insufficient Information” error, requiring airlines to resubmit the passenger data with corrected information.

  • nanoswarm9k
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    2 days ago

    1+2: Yes. Comprehension achieved.

    I like your anecdote and think it will help others. Thanks for putting in some effort!