In general
Except as otherwise provided in this section, every employer making payment of wages shall deduct and withhold upon such wages a tax determined in accordance with tables or computational procedures prescribed by the Secretary. Any tables or procedures prescribed under this paragraph shall—
(A) apply with respect to the amount of wages paid during such periods as the Secretary may prescribe, and
(B) be in such form, and provide for such amounts to be deducted and withheld, as the Secretary determines to be most appropriate to carry out the purposes of this chapter and to reflect the provisions of chapter 1 applicable to such periods.