No universal rule requires knowledge to remain exclusive. Explain the actual knowledge and its relevance to the U.S. assignment under the governing standard.
Avoid contradictory claims
Do not claim the information is impossible to teach while also presenting a routine handover. Describe the real level and application without exaggeration.
L-1B requires one continuous year of qualifying employment abroad with a related entity within the preceding three years, specialized knowledge of the organisation’s product, service, research, equipment, techniques or management, and a U.S. position that uses it. Qualifying specialized knowledge is either special knowledge about organizational products and services, research and equipment, techniques and management, or other interests—and how they apply in international markets—or an advanced level of knowledge about the organization’s processes and procedures. L-1B also requires one continuous qualifying year abroad within the applicable preceding three, active entities linked through a qualifying parent, branch, subsidiary, or affiliate relationship, and U.S. duties that actually use the asserted knowledge. Evidence of specialized knowledge should identify the company product, process, or procedure involved and explain why the later employee’s understanding is advanced or special, rather than merely showing long industry experience.