1. Short title This Act may be cited as the Smith River National Recreation Area Expansion Act . 2. Additions to the Smith River National Recreation Area (a) Definitions Section 3 of the Smith River National Recreation Area Act ( 16 U.S.C. 460bbb–1 ) is amended— (1) in paragraph (1), by striking referred to in section 4(b) and inserting entitled Proposed Smith River National Recreation Area and dated July 1990 ; and (2) in paragraph (2), by striking the Six Rivers National Forest and inserting an applicable unit of the National Forest System . (b) Boundaries Section 4(b) of the Smith River National Recreation Area Act ( 16 U.S.C. 460bbb–2(b) ) is amended— (1) in paragraph (1)— (A) in the first sentence, by inserting and on the map entitled Proposed Additions to the Smith River National Recreation Area and dated January 23, 2023 after 1990 ; and (B) in the second sentence, by striking map and inserting maps ; and (2) in paragraph (2), by striking map and inserting maps described in paragraph (1) . (c) Administration Section 5 of the Smith River National Recreation Area Act ( 16 U.S.C. 460bbb–3 ) is amended— (1) in subsection (b)— (A) in paragraph (1), in the first sentence, by striking the map and inserting the maps ; and (B) in paragraph (2)— (i) in subparagraph (A), by striking area shall be on and inserting area and any portion of the recreation area in the State of Oregon shall be on roadless ; and (ii) by adding at the end the following: (I) The Kalmiopsis Wilderness shall be managed in accordance with the Wilderness Act ( 16 U.S.C. 1131 et seq. ). ; (2) in subsection (c), by striking by the amendments made by section 10(b) of this Act and inserting within the recreation area ; and (3) by adding at the end the following: (d) Study