; (B) deployable, lighter-than-air ground surveillance equipment; (C) Vehicle and Dismount Exploitation Radars (VADER); (D) 3-dimensional, seismic acoustic detection and ranging border tunneling detection technology; (E) advanced unattended surveillance sensors; (F) mobile vehicle-mounted and man-portable surveillance capabilities; (G) unmanned aircraft systems; and (H) other border detection, communication, and surveillance technology. (8) Unmanned aircraft system The term unmanned aircraft system has the meaning given such term in section 44801(12) of title 49, United States Code. . (b) Existing waivers not affected A waiver issued by the Secretary of Homeland Security pursuant to section 102(c) of the Illegal Immigration Reform and Immigrant Responsibility Act of 1996 (division C of Public Law 104–208 ; 8 U.S.C. 1103 note) that was published in the Federal Register before the date of the enactment of this Act shall not be affected by the amendment made by subsection (a). 4. Recodifying the Secretary of Homeland Security's waiver authority; adding previously waived legal requirements (a) In general Section 103 of the Immigration and Nationality Act ( 8 U.S.C. 1103 ) is amended by adding at the end the following: (h) Waiver authority (1) In general Notwithstanding any other provision of law, the Secretary of Homeland Security shall have the authority to waive all legal requirements that the Secretary determines necessary to ensure the expeditious design, testing, construction, installation, deployment, integration, and operation of the physical barriers, tactical infrastructure, and technology under this section and section 102 of the Illegal Immigration Reform and Immigrant Responsibility Act of 1996 (division C of Public Law 104–208