1. Short title This Act may be cited as the Active Shooter Alert System Improvements Act of 2023 . 2. Integrated public alert and warning system modernization and coordination (a) Active Shooter Alert Coordinator Section 2006 of the Homeland Security Act of 2002 ( 6 U.S.C. 607 ) is amended— (1) in subsection (b)(4)— (A) in subparagraph (E), by striking and after the semicolon; (B) in subparagraph (F), by striking the period and inserting ; and ; and (C) by adding at the end the following new subparagraph: (G) shall serve as, or appoint an individual within the Office for State and Local Law Enforcement to serve as, the Active Shooter Alert Coordinator of the Department. ; and (2) by adding at the end the following new subsection: (c) Active shooter alert coordinator duties (1) In general The Active Shooter Alert Coordinator of the Department shall— (A) seek to eliminate gaps in the integrated public alert and warning system under section 526 relating to active shooters, including gaps relating to interstate travel of active shooters; (B) work with law enforcement, States, and localities to encourage the development of additional elements, such as local active shooter plans, when utilizing such integrated public alert and warning systems; (C) encourage States and localities to apply for grants under subtitle A of this title to obtain, improve, train users of, and implement integrated public alert and warning systems relating to active shooters; and (D) work with States and localities to ensure appropriate regional and local coordination of various elements of the integrated public alert and warning systems relating to active shooters. (2) Active shooter alert cooperation The Active Shooter Alert Coordinator of the Department shall cooperate with appropriate authorities in carrying out activities under this subsection. . (b) Performance reports Subparagraph (B) of section 526(e)(1) of the Homeland Security Act of 2002 ( 6 U.S.C. 321o(e)(1) ) is amended— (1) in clause (ii), by striking and after the semicolon