It may support background knowledge without proving the relevant company expertise and other requirements.
Explain the additional facts
Identify how the employee applies knowledge to the company’s actual products or processes. Do not describe a widely available certificate as exclusive proof of the claimed capability.
What has to be shown is either special knowledge of the petitioning organisation's product, service, equipment, techniques or management and their application in international markets, or an advanced level of knowledge of its processes and procedures. A vendor course teaches the standard configuration; the employer's implementation departs from that standard in specific, documentable ways, and those departures are where any specialized knowledge lives. The principal's L-1B case independently requires a continuous qualifying foreign year within the previous three, active related organizations and special or advanced company knowledge rather than a general skill. If the replacement would need months inside the company to learn coating formulations, calibration tolerances and the failure modes discovered during four seasons of trials, that is knowledge special to the organisation. The applicant must have been employed continuously for one year within the three years preceding the transfer by a qualifying entity abroad, in a capacity that was managerial, executive, or involved specialized knowledge. A petition that simply asserts deep expertise in sterilisation validation describes an industry skill set and invites the conclusion that the role could be filled from the American market.