15 CFR § 40.2 - Qualifications.
(a) To be eligible for a training grant at the Bureau of the Census the applicant must be:
(1) A bona-fide citizen of a country with whom the United States has proper diplomatic arrangements for such training programs.
(2) Able to speak, read, write, and understand the English language.
(3) Sponsored by his government either directly with the United States or through a public international agency.
(4) Physically able to undertake the activities incident to the course of training and free from communicable diseases.