; and (F) supports sharing information related to 9–1–1 requests for emergency assistance among emergency communications centers and emergency response providers. (13) Reliability The term reliability means the employment of sufficient measures to ensure the ongoing operation of Next Generation 9–1–1 including through the use of geo-diverse, device- and network-agnostic elements that provide more than one route between end points with no common points where a single failure at that point would cause all to fail. (14) State The term State means any State of the United States, the District of Columbia, Puerto Rico, American Samoa, Guam, the United States Virgin Islands, the Northern Mariana Islands, and any other territory or possession of the United States. (15) Sustainable funding mechanism The term sustainable funding mechanism means a funding mechanism that provides adequate revenues to cover ongoing expenses, including operations, maintenance, and upgrades. (16) Tribe The term Tribe has the meaning given to the term Indian Tribe in section 4(e) of the Indian Self-Determination and Education Assistance Act ( 25 U.S.C. 5304(e) ). 160. Establishment of nationwide next generation 9–1–1 cybersecurity center The Assistant Secretary, after consulting with the Administrator and the Director of the Cybersecurity and Infrastructure Security Agency of the Department of Homeland Security, shall establish a Next Generation 9–1–1 Cybersecurity Center to coordinate with State, local, and regional governments on the sharing of cybersecurity information about, the analysis of cybersecurity threats to, and guidelines for strategies to detect and prevent cybersecurity intrusions relating to Next Generation 9–1–1. 161. Next generation 9–1–1 advisory board (a) Next generation 9–1–1 advisory board (1) Establishment The Assistant Secretary shall establish a Public Safety Next Generation 9–1–1 Advisory Board (in this section referred to as the Board ) to provide recommendations to the Assistant Secretary— (A) with respect to carrying