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(a) Classification. An alien is classifiable as a nonimmigrant visitor for business (B-1) or pleasure (B-2) if the consular officer is satisfied that the alien qualifies under the provisions of INA 101(a)(15)(B), and that:
(1) The alien intends to leave the United States at the end of the temporary stay (consular officers are authorized, if departure of the alien as required by law does not seem fully assured, to require the posting of a bond with the Secretary of Homeland Security in a sufficient sum to ensure that at the end of the temporary visit, or upon failure to maintain temporary visitor status, or any status subsequently acquired under INA 248, the alien will depart from the United States);
(1) The term "business," as used in INA 101(a)(15)(B), refers to conventions, conferences, consultations and other legitimate activities of a commercial or professional nature. It does not include local employment or labor for hire. For the purposes of this section building or construction work, whether on-site or in plant, shall be deemed to constitute purely local employment or labor for hire; provided that the supervision or training of others engaged in building or construction work (but not the actual performance of any such building or construction work) shall not be deemed to constitute purely local employment or labor for hire if the alien is otherwise qualified as a B-1 nonimmigrant. An alien seeking to enter as a nonimmigrant for employment or labor pursuant to a contract or other prearrangement is required to qualify under the provisions of §41.53. An alien of distinguished merit and ability seeking to enter the United States temporarily with the idea of performing temporary services of an exceptional nature requiring such merit and ability, but having no contract or other prearranged employment, may be classified as a nonimmigrant temporary visitor for business.