"When traveling internationally they should bring a letter of permission, the child's birth certificate and guardianship papers, if applicable.
For example, the Spanish hurdler Maria Patiño, who had A.I.S., went to the World University Games in Kobe, Japan, in 1985, and forgot to bring a letter from her doctor verifying that she was female.
And I recommend students bring a letter of accommodation to each class if they have to negotiate the implementation of an accommodation (e.g., extended time on exams or assignments, etc.).
And in the case of both the teacher meetings and the technical briefings, Microsoft requires that attendees bring a letter certifying that if they accept meals or any other perks, they will not be violating local, state or federal ethics laws, according to Kevin Hartley, associate general counsel at the company.
A senior representative from a reputable Iranian pharmaceutical company told our study group that when he presented a French bank in Paris with documentation showing that a deal to ship vaccines to Iran was fully legal, he was told, "Even if you bring a letter from the French president himself saying it is O.K. to do so, we will not risk this".
If you might be subject to a background check based on your research in a field of science or technology that is tagged for closer scrutiny based on the so-called Technology Alert List, you may be able to forestall or at least shorten the check if you bring a letter from your department or PI with you detailing your research.
