To transfer executive or managers to U.S. offices under the L-1A visa category, a business must establish a qualifying relationship (parent, subsidiary, branch, or affiliate) between the U.S. entity and the foreign company. The transferee must have worked abroad in managerial or executive capacity for at least one continues year within the past three years. The U.S. employer must file Form I-129 with USCIS. Upon approval, the employee applies for the visa at a consulate, enters the U.S., and assumes the role. For new offices, proof of operational capacity is required. Blanket L petitions streamline the process for larger corporations.