as the case may be, by any amount by which the Secretary finds that the Secretary’s estimates for any prior calendar month were greater or less than the amounts which should have been paid to the State. Such estimates may be made on the basis of such statistical, sampling, or other method as may be agreed upon by the Secretary and the State agency of the State involved. (3) Limitations on payments (A) General payment limitations No payments shall be made to a State under this section for short-time compensation paid to an individual by the State during a benefit year in excess of 26 times the amount of regular compensation (including dependents’ allowances) under the State law payable to such individual for a week of total unemployment. (B) Employer limitations No payments shall be made to a State under this section for benefits paid to an individual by the State under a short-time compensation program if such individual is employed by the participating employer on a seasonal, temporary, or intermittent basis. (b) Applicability (1) In general Payments to a State under subsection (a) shall be available for weeks of unemployment— (A) beginning on or after the date of the enactment of this Act