No automatic conclusion follows from its age. Explain the actual special or advanced organizational knowledge and why the current assignment requires it.
Connect knowledge to the present work
A historical product résumé is not enough without the relevant task and application.
The petition should explain why the claimed knowledge is particular to the company rather than merely a general engineering skill; there is no separate requirement to prove that workers are unavailable in the US labour market. Documentation of the system or procedures themselves, the employee's project and implementation history, internal training records, and any organizational material showing how the knowledge is distributed within the group. Specialized knowledge covers the organization’s products, services, research, equipment, techniques, management or other interests and their application in international markets, or advanced knowledge or expertise in its processes and procedures. Knowledge of a proprietary control system, its configuration conventions and its failure modes is knowledge of the petitioner's product; general controls or millwright competence is a trade skill. Knowledge of the house yeast protocol, the warehouse rotation model and the blending matrix may qualify; general expertise in maturation, however advanced, does not meet the standard on its own.