The H-1B visa program generally allows a foreign
employee to work for a specific sponsoring American employer. As is true in
many employment situations, the location of work can change.
USCIS has published a policy memorandum making
clear that USCIS may request detailed documentation to ensure a legitimate
employer-employee relationship is maintained while an employee is working at a
third-party worksite. In publishing this policy, USCIS clarifies existing
regulatory requirements relating to H-1B petitions filed for workers who will
be employed at one or more third-party worksites.