Board approval establishes a private company decision, not immigration permission. The individual eligibility and applicable process still need to support the start.
Coordinate the corporate and immigration steps
Identify the genuine role and foreign employment history. An internal effective date cannot waive the qualifying year or guarantee a government decision by the planned launch.
For a petition involving an already-operating qualifying U.S. entity, initial L-1A approval periods are typically longer than the one-year period given to a genuinely new U.S. office; the exact validity period depends on the petition and the evidence of the U.S. operation submitted. Start with the ownership chain: certificates of incorporation for each entity, current share registers or membership schedules, and the purchase agreement and closing documents for the American operation, so that a reader can trace control from one company to the other without inference. The second block is preparation and filing: the business plan, the organization chart with hiring dates, the ownership chain, and the petition itself, with premium processing available if the company wants a faster decision.