The Hauler-Sampler Program establishes a training and registration program for milk hauler-samplers. Milk haulers are required to take milk samples. These milk samples are tested for milk component contents (i.e., butterfat, protein, and other milk solids) as well as to gather quality information such as bacterial counts and to determine the presence of antibiotics.

The Division maintains a hauler-sampler program to inform and train haulers on proper sampling techniques and the importance of sampling in the quality and profitability of a dairy farm.