IN THIS GUIDE · Separate knowledge learned part-time from the required qualifying employment year
Start with the L-1B eligibility and application overview
Record the actual employment arrangement
Identify the start and end of each schedule, the legal employer, work location and duties. Generally the L evidence must establish one continuous year of qualifying full-time foreign employment within the relevant preceding three years. Do not invent a universal hours threshold or simply add disconnected periods to manufacture continuity. Use payroll, timesheets, leave records and manager confirmation to mark the beginning and end of the full-time period. The decision is whether a gap or reduced schedule needs a different route or a later filing date, rather than an optimistic reconstruction of continuity.
Explain how the knowledge was acquired
Describe the applicant’s real work and learning, including the reduced-schedule period where relevant. The knowledge claim concerns special knowledge of organizational interests and international application, or advanced knowledge of organizational processes and procedures. Evidence of learning and evidence of the qualifying year have different purposes. Match training records, internal manuals, project assignments and examples of problem solving to the particular knowledge claimed. A first review should identify what is uncommon within the organization and why an ordinary description of technical skill would not resolve that question.
Connect the current knowledge to the proposed work
Explain what the U.S. assignment requires and the employee’s preparation for it. Support the qualifying company relationship and continuing qualifying operations in the United States and abroad. A full-time schedule alone does not establish specialized knowledge, just as knowledge alone does not establish the required employment history. Obtain the U.S. duty description, project plan and reporting line before choosing language for the petition. The practical choice is whether the assignment uses the particular organizational knowledge or instead describes routine production, customer support or skills available in the general labour market.
Examine the actual U.S. working conditions
Placement primarily at the worksite of an unaffiliated company is permitted only on conditions. Where the U.S. work would be performed at a worksite the petitioning employer does not control, an additional condition applies before the individual’s schedule is worth drafting. Review sufficient physical premises and the financial ability to remunerate the employee and commence doing business. Signing an agreement about information and holding specialized knowledge of it are separate facts, and only the second is at issue. An initial L-1B review should turn claimed expertise into specific, verifiable knowledge: the product feature, internal process, training source, users of the knowledge and why the US assignment needs it. If an unaffiliated client will receive the work, examine who controls daily tasks and whether the arrangement resembles labour for hire. Avoid claiming secrecy where the actual point is depth of application, and avoid treating an article as a substitute for the operational account.
Sources reviewed 2026-09-07. This guide covers a preparation focus; it is not an individual eligibility assessment.