(a) In generalSubject to subsection (c), the amount of a requirements payment made to a State for a year shall be equal to the product of—
(1)
the total amount appropriated for requirements payments for the year pursuant to the authorization under section 21007 of this title; and
(b) State allocation percentage definedThe “State allocation percentage” for a State is the amount (expressed as a percentage) equal to the quotient of—
(2)
the total voting age population of all States (as reported in the most recent decennial census).
(c) Minimum amount of paymentThe amount of a requirements payment made to a State for a year may not be less than—
(1)
in the case of any of the several States or the District of Columbia, one-half of 1 percent of the total amount appropriated for requirements payments for the year under section 21007 of this title; or
(d) Pro rata reductions
The Administrator [1] shall make such pro rata reductions to the allocations determined under subsection (a) as are necessary to comply with the requirements of subsection (c).