The main purpose of this legislation is to stop the use of federal funding for research that involves testing on dogs by the National Institutes of Health (NIH). The objective is to protect dogs from being subjected to experiments that may cause them harm or distress. The key provision of this law is a clear prohibition on the use of any federal money by the NIH for biological, medical, or behavioral research that involves testing on dogs. This means that if the law is enacted, the NIH will not be able to allocate any of its budget for projects that include experiments on dogs.