; (4) by striking section 1905; (5) by redesignating sections 1902, 1903, 1904, 1906, and 1907 as sections 1923, 1924, 1925, 1926, and 1927, respectively, and transferring such sections to appear after section 1922, as added by paragraph (3); (6) in section 1923, as redesignated— (A) in the section heading, by striking Mission of Office and inserting Responsibilities ; and (B) in subsection (a)(11), by striking Domestic Nuclear Detection Office and inserting Office ; (7) in section 1925, as redesignated, in subsection (a), in the first sentence, by striking section 1902 and inserting section 1923 ; (8) in section 1926, as redesignated— (A) in the matter preceding paragraph (1)— (i) by striking Director for Domestic Nuclear Detection and inserting Assistant Secretary ; and (ii) by striking paragraphs (6) and (7) of section 1902(a) and inserting section 1923 ; and (B) in paragraph (2), by striking paragraphs (6) and (7) of section 1902(a) and inserting section 1923 ; (9) in section 1927, as redesignated— (A) in subsection (a)(1)(C), in the matter preceding clause (i), by striking Director of the Domestic Nuclear Detection Office and inserting Assistant Secretary ; and (B) in subsection (c), by striking section 1902 and inserting section 1923