IN THIS GUIDE · Explain process knowledge independently of seniority or ownership
Describe the internal process concretely
Hypothetical example: an employee has developed advanced understanding of an internal process and will apply it in a related U.S. operation. Explain the process, the applicant’s contributions and the decisions it enables. Do not rely only on a broad claim that the person knows the business well.
Use the actual specialized-knowledge concepts
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. The knowledge is not universally required to be unique or secret. A business interest does not establish the employee’s actual organizational expertise.
Connect the knowledge to individual records
Provide genuine training, project and employment evidence demonstrating acquisition and use. Identify the applicant’s personal role rather than attributing all company expertise to the individual. Label future training and proposed work accurately instead of treating them as completed experience.
Review the actual U.S. arrangement
Describe the actual duties and supervision, including customer-site work. If the worker is placed principally at an unaffiliated employer’s worksite, L-1B is unavailable where that employer principally controls and supervises the worker, or where the arrangement is essentially labor for hire instead of a placement connected with the petitioner’s product or service requiring specialized knowledge. A related-company label does not resolve either independent limitation.
Complete the foreign-employment and new-office assessment
L-1B generally requires one continuous qualifying year of foreign employment within the relevant preceding three-year period, along with qualifying organizations that meet the doing-business requirements. Assess actual dates and locations; U.S. days do not count toward the foreign year. For a U.S. organization doing business for less than one year, the L-1B new-office evidence includes sufficient premises and financial ability to pay the employee and begin doing business. Initial new-office approval is limited to at most one year. The foreign year generally must be full-time and may involve managerial, executive or specialized-knowledge employment under the ordinary L rule. Brief U.S. trips need not interrupt continuity, but their days do not count toward the foreign year. The group must conduct business regularly, systematically and continuously in the United States and at least one other country throughout the relevant stay.
Sources reviewed 2026-09-07. This guide covers a preparation focus; it is not an individual eligibility assessment.