No universal secrecy requirement applies. Explain the relevant special or advanced organizational knowledge under the actual standard.
Do not exaggerate confidentiality
Calling an ordinary document secret does not establish specialized knowledge.
A qualifying relationship, one continuous year of qualifying employment abroad in the previous three years, and a U.S. position requiring specialized knowledge of the company's own process rather than general professional skill. The statutory test is knowledge of the petitioning organization’s product, service, research, equipment, techniques, management or other interests and its application in international markets, or an advanced level of knowledge of the organization’s processes and procedures. Gather training records and project history showing how the employee acquired the relevant process knowledge, and connect that history to concrete responsibilities rather than a general job description. An internally built system is one of the better fact patterns for L-1B, because the distinction the statute draws between organizational knowledge and general skill maps cleanly onto software nobody else runs. Identify company-specific products, processes, or procedures the employee understands; describe difficult judgments made; and compare that understanding with ordinary worker knowledge.