; reports (a) Information dissemination (1) In general The COPS Director shall disseminate to each local educational agency in the United States information about the availability of grants under sections 2901 and 2902. (2) Event notice Not later than 30 days after an event in which an individual inflicts deadly harm or attempts to inflict deadly harm against multiple individuals occurs in a public school, the Director shall contact verbally the head of such public school to provide notice of priority eligibility for grants under sections 2901 and 2902 and to offer technical assistance in navigating the application process. (b) Grant recipient report Not later than 1 year after receiving a grant under section 2901 or 2902, the grant recipient shall submit to the COPS Director a copy of the results of each independent facility security risk assessment and a list of each hard improvement for which the grant funds were used by the recipient. (c) COPS Director Report Not later than 2 years after the date of enactment of this part, and annually thereafter, the COPS Director shall submit to the appropriate congressional committees a report on the national state of physical security in schools, which shall include the contents of any information submitted by a grant recipient under subsection (b). 2904. Tiers of vulnerability (a) In general The COPS Director, in consultation with school safety experts, including school resource officers, shall issue guidelines implementing this part. Such guidelines shall include a 4-tier scale for assessing security vulnerabilities of schools in independent facility security risk assessments. In the 4-tier scale developed under this subsection, tier 4 shall indicate the highest level of vulnerability. (b) Factors The factors to be considered in determining a school facility’s level of vulnerability include— (1) the amount of violence occurring on campus involving deadly weapons, including knives longer than 3 inches, firearms, and explosives