The program authorized under the BVP pays up to 50 percent of the cost of body armor approved by the U.S. Justice Department's National Institute of Justice (NIJ); however, given the projected number of eligible jurisdictions and the limited funds available, the BVP may not have sufficient funds to provide 50 percent for all applications. Law enforcement personnel and agencies must apply for a BVP grant through the government of their jurisdiction. Parties eligible to receive BVP funding are "law enforcement officers," defined as any officer, agent, or employee of a State, unit of local government, or Indian tribe authorized by law or by a government agency to engage in or supervise the prevention, detection, or investigation of any violation of criminal law, or authorized by law to supervise sentenced criminal offenders. Those who meet this definition can be full-time, part-time, or auxiliary personnel, whether paid or volunteer.