| http://www.w3.org/ns/prov#value | - A citizen of Canada or Mexico admitted into the United States as a TN nonimmigrant who seeks to change or add a United States employer during the period of admission must have the new employer file a Form I-129 with appropriate supporting documentation, including a letter from the new employer describing the services to be performed, the time needed to render such services, and the terms of remune
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