商用では米国拠点は給与は支払えませんが、負担できる費用もあります。
FAMには以下のように書かれています。
9 FAM 402.2-5(F)(1) Incidental Expenses or Remuneration
A nonimmigrant in B-1 status may not receive a salary from a U.S. source for services rendered in connection with his or her activities in the United States. A U.S. source, however, may provide the alien with an expense allowance or reimbursement for expenses incidental to the temporary stay. Incidental expenses may not exceed the actual reasonable expenses the alien will incur in traveling to and from the event, together with living expenses the alien reasonably can be expected to incur for meals, lodging, laundry, and other basic services.
つまり商用で滞在中の米国での活動に対して米国拠点は給与は支払えませんが、一時的な滞在のための、宿泊費、食費など、合理的な内容と費用であれば負担することができます。
