Under which condition is a person supplying dogs to research exempt from licensing with the USDA?

The condition under which a person supplying dogs to research is exempt from licensing with the USDA pertains to the sale of fewer than 25 dogs born on their premises within a year. This exemption recognizes that small-scale breeders who keep their operations below a certain threshold may not present the same level of risk to animal welfare as larger operations. The limit is specifically set at 25 dogs to ensure that individuals with a limited number of animals who engage in an occasional sale are not burdened with the licensing requirements that apply to larger and more commercial breeding operations.

The other options do not meet the specific criteria for exemption outlined in the Animal Welfare Act Regulations. For example, owning a maximum of 10 dogs or being a non-commercial breeder does not automatically exempt someone from licensing requirements if their sales exceed the specified threshold. Similarly, only supplying retired research dogs does not align with the criteria that govern the sale of dogs bred and raised on one's premises. The focus of the exemption is the number of dogs sold and their originating location, which is why the condition of fewer than 25 dogs born on the premises is the correct answer.