Practice Pointer: What to Do If CBP Fails to Issue I-94 or Stamp Passport for U Nonimmigrant By Maria Lazzarino | September 9, 2020 | 0 Practice Pointer: What to Do If CBP Fails to Issue I-94 or Stamp Passport for U Nonimmigrant Practice Pointer: What to Do If CBP Fails to Issue I-94 or Stamp Passport for U Nonimmigrant Posted in Immigration Protections, New Resources, News, Practice Advisories, Practice Updates, Resource Library, U visas