; and (2) the distribution of VIPR team operations deployed across different modes of transportation. (b) Annex The notification under subsection (a) may contain a classified annex. (c) Definition of VIPR team In this section, the term VIPR means a Visible Intermodal Prevention and Response team authorized under section 1303 of the National Transit Systems Security Act of 2007 ( 6 U.S.C. 1112 ). 224. Public area best practices (a) In general The Administrator shall, in accordance with law and as received or developed, periodically submit to Federal Security Directors and appropriate aviation security stakeholders information on any best practices developed by the TSA or appropriate aviation stakeholders related to protecting aviation infrastructure from emerging threats to public spaces of transportation venues. (b) Information sharing The Administrator shall, in accordance with law— (1) in coordination with the Office of the Director of National Intelligence and industry partners, implement improvements to the Air Domain Intelligence and Analysis Center to encourage increased participation from aviation stakeholders and enhance government and industry aviation security information sharing on aviation security threats, including on cybersecurity threat awareness; and (2) expand and improve the City and Airport Threat Assessment or similar program to public and private aviation stakeholders to capture, quantify, communicate, and apply applicable intelligence to inform airport mitigation measures, such as— (A) quantifying levels of risk by airport that can be used to determine risk-based security mitigation measures at each location; (B) determining random and surge employee inspection operations based on changing levels of risk; and (C) targeting any high-risk employee groups and specific points of risk within the airport perimeter for such mitigation measures as random inspections