(a) Upland cotton eligible for payment under this part must be cotton that is consumed by the domestic user in the United States on or after the effective date of a signed Upland Cotton Domestic User Agreement, but not later than such date as may be set by the Agricultural Marketing Service.

(b) The following are not eligible for payment under this part:

(1) Cotton for which a payment under the provisions of this part has already been claimed or made available;

(2) Raw (unprocessed) motes, pills, linters, or other derivatives of the lint cleaning process; or

(3) Textile mill wastes.