A quality examination and tests shall be made on the first shipment of milk from a producer shipping milk to a plant for the first time or resuming shipment to a plant after a period of non-shipment. The milk shall meet the requirements for acceptable milk, somatic cell count and drug residue level (§§ 58.133 , 58.134 and 58.135 ) . The buyer shall also confirm that the producer's milk is currently not excluded from the market (§ 58.137 ) . Thereafter, the milk shall be tested in accordance with the provisions in §§ 58.133 , 58.134 and 58.135 .
7 C.F.R. §58.138