IN THIS GUIDE · Distinguish knowledge already acquired from training promised after transfer
Start with the L-1B eligibility and application overview
Record the employee’s actual experience
Hypothetical example: an employee understands an older internal process but would receive training on a redesigned U.S. workflow. Identify retained knowledge, changed elements and real practical experience. Do not equate familiarity with the company to mastery of the new assignment.
Explain the relevant knowledge basis
Describe special knowledge of the organization’s interests and international application or advanced knowledge of its processes and procedures, as the facts support. No universal secrecy or uniqueness test applies. Ordinary tool familiarity alone does not establish the standard.
Connect knowledge to the proposed duties
Identify tasks the applicant will actually perform and how existing knowledge is used. Explain planned learning honestly. A title or course schedule does not replace the required connection between the employee’s knowledge and the U.S. work.
Keep employment and company facts separate
Provide the qualifying foreign-employment history and actual company relationship. Strong technical experience does not resolve a missing employment period or unrelated employer arrangement. Review any changed role before relying on an earlier plan.
Complete the foreign-employment and new-office assessment
L-1B generally requires one continuous full-time 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. Brief U.S. trips need not interrupt continuity. The qualifying organization’s business in the United States and another country must involve regular, systematic, continuous goods or services, not registration alone. For an ordinary L petition, the qualifying foreign work may be managerial, executive or specialized knowledge; the U.S. duties must meet the requested classification. New-office L-1A specifically requires managerial or executive foreign employment.
Sort general skill from company-specific knowledge
Where the employee will work primarily at a third party's premises, two additional conditions apply: the placement must not amount to labour for hire, and the petitioning employer rather than the site owner must retain control and supervision of the work. Usually the answer is concrete: a system being stood up, a product being brought to a new market, or a process the local team has no way to learn quickly. The analysis should show what is special or advanced in context rather than rely on a broad assertion that the entire technology stack is unique. Set out what is standard practice in the industry and what the employee knows about this organisation's operations, and let the documents establish the distinction rather than adjectives. The standard is not universally limited to unique, secret or proprietary information; general skill alone is not the complete account. Where a customer site is involved, contracts and working instructions should show who controls the employee, what the employee will deliver and why the task uses the petitioner's knowledge. For work primarily at an unaffiliated employer’s site, the restriction concerns a worker controlled and supervised principally by that employer, or placement essentially providing labour for hire rather than a product or service requiring knowledge specific to the petitioner. Version-controlled diagnostic tables, restricted training modules and records of unusual failures can connect the knowledge to the enterprise rather than to a résumé.
Sources reviewed 2026-09-07. This guide covers a preparation focus; it is not an individual eligibility assessment.