On or before the payment receipt date specified under §____.71 of each Federal milk order each handler shall pay to the market administrator its pro rata share of the expense of administration of the order at a rate specified by the market administrator that is no more than 5 cents per hundredweight with respect to:

(a) Receipts of producer milk (including the handler's own production) other than such receipts by a handler described in §1000.9(c) that were delivered to pool plants of other handlers;

(b) Receipts from a handler described in §1000.9(c);

(c) Receipts of concentrated fluid milk products from unregulated supply plants and receipts of nonfluid milk products assigned to Class I use pursuant to §1000.43(d) and other source milk allocated to Class I pursuant to §1000.44(a) (3) and (8) and the corresponding steps of §1000.44(b), except other source milk that is excluded from the computations pursuant to §____.60 (d) and (e) of parts 1005, 1006, and 1007 of this chapter or §____.60 (h) and (i) of parts 1001, 1030, 1032, 1033, 1124, 1126, 1131, and 1135 of this chapter; and

(d) Route disposition in the marketing area from a partially regulated distributing plant that exceeds the skim milk and butterfat subtracted pursuant to §1000.76(a)(1) (i) and (ii).