; waiver (1) Exceptions (A) Certain existing authorities Notwithstanding subsection (a) , the Secretary of Defense shall retain the authority granted by section 1253 of the Carl Levin and Howard P. Buck McKeon National Defense Authorization Act for Fiscal Year 2015 ( 22 U.S.C. 2151 note). The limitation in subsection (a) of this section may not be construed to limit the authority to provide the Government of Burma with assistance necessary to make available the activities described in subsection (a) of such section 1253. (B) Hospitality Notwithstanding subsection (a) , the Secretary of State and the United States Agency for International Development may provide assistance authorized under part I of the Foreign Assistance Act of 1961 ( 22 U.S.C. 2151 et seq.) to provide hospitality during research, dialogues, meetings, or other activities by the parties attending the Union Peace Conference 21st Century Panglong or related processes seeking inclusive, sustainable reconciliation. (2) Waiver The Secretary of State, with respect to security assistance, and the Secretary of State in consultation with the Secretary of Defense, with respect to security cooperation programs and activities of the Department of Defense, may waive on a case-by-case basis the limitation under subsection (a) if the Secretary submits to the appropriate congressional committees, not later than 30 days before such waiver enters into effect— (A) a list of the activities and participants to which such waiver would apply; (B) a certification, including a justification, that the waiver is in the national security interest of the United States