; (3) in subsection (h)(2)(A)(i)(II), by striking known at the time of the acquisition and inserting reasonably believed at the time of the acquisition or communication ; and (4) in subsection (j)(2)(B)(ii), by striking known at the time of the acquisition and inserting reasonably believed at the time of the acquisition or communication . 108. Requirement of a foreign intelligence purpose Section 702(h)(2)(A)(v) of the Foreign Intelligence Surveillance Act of 1978 ( 50 U.S.C. 1881a(h)(2)(A)(v) ) is amended by striking a significant and inserting the . 109. Four-year extension of section 702 of the Foreign Intelligence Surveillance Act of 1978 (a) Extension Section 403(b) of the FISA Amendments Act of 2008 ( Public Law 110–261 ) is amended— (1) in paragraph (1) (50 U.S.C. 1881–1881g note), by striking December 31, 2023 and inserting September 30, 2027 ; and (2) in paragraph (2) ( 18 U.S.C. 2511 note), in the matter preceding subparagraph (A), by striking December 31, 2023 and inserting September 30, 2027 . (b) Conforming amendment The heading of section 404(b)(1) of the FISA Amendments Act of 2008 ( Public Law 110–261 ; 50 U.S.C. 1801 note) is amended by striking December 31, 2023 and inserting September 30, 2027 . II Additional reforms relating to activities under the Foreign Intelligence Surveillance Act of 1978 201. Court supervision of collection targeting United States persons and persons located inside the United States (a) In general Title VII of the Foreign Intelligence Surveillance Act of 1978 (50 U.S.C. 50 U.S.C. 1881 et seq. ) is amended— (1) by striking sections 703, 704, and 705 ( 50 U.S.C. 1881b , 1881c, and 1881d)