An employer’s description does not extend authorized stay. Check actual status, assignment conditions and the applicable extension process.
Respect the individual timeline
Business need and immigration permission are separate facts.
The maximum period in specialized-knowledge status is five years, and time already spent in the United States in that or a related category generally counts against it. A specialized-knowledge case may take longer if USCIS issues a request for additional evidence, so do not commit to a U.S. start date before reviewing the actual processing path. Agree with the employer which events prompt a fresh assessment: a shift in who directs the work, a move to a different site, a materially different set of duties, or an extension beyond the period described. Build a dated review file around the assignment dates, aggregate L time, customer worksite facts, supervision terms, and any changed duties. Preserve actual operating records and review changes in duties or funding rather than assuming the initial approval guarantees an extension. Gathering internal evidence and obtaining a considered supervisor comparison can take substantial time, and a request for additional evidence would extend the timeline further.