PREPA was designed specifically to encourage rapid production of vaccines to protect American citizens in case of a potential public health threat. However, the primary effects of the legislation hinge on liability protections for drug companies, under provisions intended to remove financial risk barriers for any new vaccines that need to be rushed to market in case of an emergency. Under PREPA, the HHS secretary will have primary responsibility for making decisions on whether or not to declare an emergency that would justify removing financial risk barriers, which otherwise would cause a prudent manufacturer to exercise caution. Pursuant to such an emergency declaration, liability protection would extend to doctors and other individuals and organizations involved with countermeasures, which may include any medical product to prevent, treat, mitigate, or diagnose an epidemic.