Monthly usage report of producer; monthly purchase reports by distributors.

1. For the purpose of computing usage: (a) Each milk plant, whether owned by one or more interests, is an individual plant pool. (b) Milk is deemed to have received Class I usage unless the distributor furnishes proof satisfactory to the Director that he or she received a different usage. 2. A distributor shall furnish each producer from whom he or she receives milk a monthly report of purchases of milk. The report must state the quantity, price and usage of each purchase and all deductions and withholdings. The report must accompany either the second or final payment of each month to the producer. The report must be made on forms furnished by the Director.