; (3) the term extreme risk protection order means a written order, issued by a State court or signed by a magistrate prohibiting the respondent from purchasing, possessing, or receiving a firearm; and (4) the term law enforcement officer means a public servant authorized by State law or by a State government agency to engage in or supervise the prevention, detection, investigation, or prosecution of a criminal offense. 3. National extreme risk protection order law (a) Enactment of extreme risk protection order law In order to receive a grant under section 4, a State shall have in effect a law that authorizes the issuance of an extreme risk protection order in accordance with subsection (b). (b) Requirements for extreme risk protection orders Legislation required under subsection (a) shall be subject to the following requirements: (1) Generalized concerns insufficient A generalized concern related to any hazards posed by firearm ownership or use generally shall not constitute sufficient basis for the issuance or renewal of an extreme risk protection order under this section. (2) Application for preliminary ex parte extreme risk protection order A family member or a law enforcement officer, whether acting on the officer’s own initiative or in response to a complaint the officer has substantiated through independent investigation, may submit an application to a State court for the issuance of a preliminary ex parte extreme risk protection order, on a form designed by the court, that— (A) describes the facts and circumstances necessitating that a preliminary ex parte extreme risk protection order be issued against the respondent; (B) is signed by the applicant, under oath