The petition happened elsewhere. What reaches your HR team is a work-authorized person with documents to verify — the process your team already runs.
The person's status ties to the itinerary their agent filed. If the shape of the engagement changes materially, the agent side needs to know — that is a phone call to us, not a filing by you. The legal read on any specific situation belongs to your attorney.
Premium processing returns a USCIS decision in 15 calendar days, so start-date planning is concrete rather than seasonal.
By the time you onboard, the person holds O-1 status: ordinary I-9, ordinary payroll, ordinary first day.