; and (2) regarding participation in the grant program established under section 9202(a)(1) of the William M. (Mac) Thornberry National Defense Authorization Act for Fiscal Year 2021 ( 47 U.S.C. 906(a)(1) ). (b) Definitions In this section: (1) Under Secretary The term Under Secretary means the Under Secretary, acting through the head of the Office of Internet Connectivity and Growth. (2) Open network architecture The term open network architecture means Open RAN networks and other network elements that follow a set of published open standards for multi-vendor network equipment interoperability, including open core and open transport. (3) Open RAN network The term Open RAN network means a wireless network that follows the Open Radio Access Network architecture and published open standards for multi-vendor network equipment interoperability. V Office of Public Safety Communications 501. Establishment of the Office of Public Safety Communications Part A of the National Telecommunications and Information Administration Organization Act ( 47 U.S.C. 901 et seq. ), as amended by the preceding provisions of this Act, is further amended by adding at the end the following: 110B. Establishment of the Office of Public Safety Communications (a) Establishment There is established within the NTIA an Office of Public Safety Communications (in this section referred to as the Office ). (b) Head of office (1) In general The head of the Office shall be an Associate Administrator for Public Safety Communications (in this section referred to as the Associate Administrator ). (2) Requirement to report The Associate Administrator shall report to the Under Secretary (or a designee of the Under Secretary). (c) Duties The Associate Administrator shall, at the direction of the Under Secretary— (1) administer any grant program of the Federal Government related to Next Generation 9–1–1 on behalf of the Under Secretary; (2) analyze public safety policy communications issues, including by obtaining such analysis