More officials wrote to this office than trainers and promoters combined — and there was not one page in the estate, or frankly the industry, about them. Officials fall between classifications; that is exactly why a specialist owns the question.
A referee is not the athlete (P-1A's subject), usually not an employee of one team, and often paid per event across a season — a profile the classifications serve only when the structure is chosen deliberately. The result: officials get told "just come on a B-1" by event staff, and discover the line the hard way.
Unpaid honorary officiating at an amateur event can fit visitor rules. Officiating for compensation — fight purse percentages, per-bout fees, meet officiating contracts — is work, and work needs work authorization. The pattern that burns people: entering as a visitor for one paid card. The consulate and CBP have seen it; the record it leaves follows every later application (the tryout page tells the athlete version of the same story).
The engaging organization usually petitions — the promotion for a card, the federation for a championship, the league for a season. Circuit officials working multiple events for multiple organizers are the agent-structure's natural citizens: one petition, an itinerary of assignments, amendments as the calendar fills.
One championship weekend supports a tight single-event petition; a season of assignments needs the itinerary discipline of a properly built filing — and timing runs on the same four clocks as everyone else, with the emergency lane available when the commission calls late. This office's support-staff practice (see the published P-1S/O-2 page) files exactly these.
Officials' cases are structure cases — bring the assignment letter or the season calendar. A $500 consultation with Sherrod Seward covers your specific facts — credited toward the fee if you retain the firm.
Paid judging is work — the safe answer is the petition, and the promotion usually files it. The B-1 answer fits only genuinely unpaid honorary roles.
The petitioner must be US-based — foreign federations route through the engaging US organization or a US agent. Solved problem, right paper.
Elite officials with world-title assignments carry federation records that read directly onto the criteria — the classification fits more of them than the industry assumes.