IN THIS GUIDE · A process specialist whose knowledge has to belong to the company, not the industry
Start with the L-1B eligibility and application overview
Special or advanced, and neither word means excellent
The classification reaches knowledge that is special — of the petitioner's product, service, research, equipment, techniques, management or other interests and their application in international markets — or advanced, meaning an advanced level of knowledge or expertise in the organization's processes and procedures. Both are measured against the organization, not against the labour market. Étienne's fluency with a proprietary control platform his employer wrote is the kind of fact that fits. His general competence in water chemistry, however deep, does not, because it is the ordinary equipment of his profession. The most useful test a petition can apply to itself is subtraction: if a sentence would remain true of a well-qualified stranger hired from a competitor, it is not evidence of specialized knowledge and should come out.
The evidence exists already, or it does not exist at all
Specialized knowledge is proved with records the company made before it needed a petition. Internal training curricula and Étienne's completion records; the version history of the procedure showing his authorship; commissioning reports naming him; the number of installations he has led and how long a replacement took to reach competence; the fact that two customers required him by name in their contracts. Assertions written for the filing carry little weight against documents generated in the ordinary course of business. Two further points are structural rather than evidentiary: the one continuous year of employment abroad within the three preceding years, and a qualifying relationship between the two entities shown through ownership records. L-1B is capped at five years, and time in L-1A counts against the same overall ceiling.
Where he will actually stand each working day
If Étienne will spend most of the assignment on customer sites rather than at the affiliate's own premises, the petition meets a specific rule. Placement at a third party's worksite is permitted only where he will not principally be controlled and supervised by that third party, and where the arrangement is not essentially the provision of labour for hire. The affiliate must direct his work, set his priorities and evaluate him, and what it supplies must be its own methodology rather than staffing. Service agreements, the reporting line, and whoever decides his schedule are the documents that answer this. A staffing arrangement dressed as a technical services contract is the version that fails, and it usually fails on facts the client's own paperwork reveals.
Sources reviewed 2026-09-08. This guide covers a preparation focus; it is not an individual eligibility assessment.