IN THIS GUIDE · A plant breeder whose specialized knowledge must be evidenced and whose posting is offsite
Start with the L-1B eligibility and application overview
The knowledge has to belong to the company, not to the discipline
L-1B reaches an employee with special knowledge of the petitioning organization's product, service, research, equipment, techniques or management, and its application in international markets, or with an advanced level of knowledge of that organization's processes and procedures. Plant breeding itself fails that description, because it is taught in universities and practised across an entire industry, and a petition built on how skilled Anneke is at breeding invites the obvious answer that others are skilled too. What is genuinely hers, and the company's, is narrower and stronger: the marker panels the firm validated for its own germplasm, the selection thresholds it settled on after a decade of trial data, the schema and scoring logic of a database nobody else uses. The petition should be written about those things and should resist the temptation to open with her curriculum vitae.
Showing it, rather than saying it
Support letters in this category tend to describe an employee as uniquely knowledgeable and then stop, which is the point at which a request for evidence usually arrives. Evidence that shifts the reading is concrete and often already in a filing cabinet. Internal protocol manuals carrying her name as author and revision dates. Plant variety protection or patent filings that list her as a breeder. Version histories showing she designed the database structure rather than merely using it. Training records showing what the company had to invest to bring her to this level and, more persuasively, an honest estimate of how long it would take to train a replacement and why. A comparison against the rest of the workforce helps too, since knowledge is special relative to colleagues and to the market, not in the abstract. Assertion is what an officer discounts; documents are what an officer weighs.
Being stationed at somebody else's farm is a separate legal test
Where an L-1B employee will be primarily stationed at the worksite of an employer other than the petitioner, two further conditions apply. The work must be controlled and supervised principally by the petitioner rather than by the site owner, and the placement must not amount to labour for hire, meaning the transferee cannot simply be supplied to another business needing hands. Placement has to connect to the provision of a product or service involving specialized knowledge specific to the petitioner. A contract nursery running trials under the affiliate's protocols, reporting to the affiliate's research director, using the affiliate's proprietary system, can satisfy that. The same person taking direction from the nursery's own manager and doing whatever field work the season requires cannot. Write the supervision structure into the petition and into the contract with the nursery, because both will be read.
Sources reviewed 2026-09-07. This guide covers a preparation focus; it is not an individual eligibility assessment.