; or (B) operationally effective adaptations of such designs that help mitigate community or environmental impacts of barrier system construction, including adaptations based on consultation with jurisdictions within which barrier system will be constructed; and (2) are constructed in the highest priority locations as identified in the Border Security Improvement Plan. 3. Improving the requirements for barriers along the southern border (a) In general Section 102 of the Illegal Immigration Reform and Immigrant Responsibility Act of 1996 (division C of Public Law 104–208 ; 8 U.S.C. 1103 note) is amended— (1) in subsection (a), by striking to install and all that follows and inserting (including the removal of obstacles to detection of illegal entrants) to design, test, construct, install, deploy, integrate, and operate physical barriers, tactical infrastructure, and technology in the vicinity of the United States border to achieve situational awareness and operational control of the border and deter, impede, and detect illegal activity in high traffic areas. ; (2) in subsection (b)— (A) in the subsection heading, by striking fencing and road improvements and inserting physical barriers ; (B) in paragraph (1)— (i) in subparagraph (A)— (I) by striking subsection (a) and inserting this section ; and (II) by striking roads, lighting, cameras, and sensors to gain and inserting tactical infrastructure, and technology to achieve situational awareness and ; (ii) by amending subparagraph (B) to read as follows: (B) Physical barriers and tactical infrastructure The Secretary, in carrying out this section, shall deploy along the United States border the most practical and effective physical barriers and tactical infrastructure available for achieving situational awareness and operational control of the border.