; and (2) subject to any terms and conditions determined to be necessary by the Secretary. 303. Designation of potential wilderness (a) Designation In furtherance of the purposes of the Wilderness Act ( 16 U.S.C. 1131 et seq. ), the following areas in the State are designated as potential wilderness areas: (1) Certain Federal land managed by the Forest Service, comprising approximately 4,005 acres, as generally depicted on the map entitled Chinquapin Proposed Potential Wilderness and dated May 15, 2020. (2) Certain Federal land administered by the National Park Service, compromising approximately 31,000 acres, as generally depicted on the map entitled Redwood National Park—Potential Wilderness and dated October 9, 2019. (3) Certain Federal land managed by the Forest Service, comprising approximately 5,681 acres, as generally depicted on the map entitled Siskiyou Proposed Potential Wildernesses and dated May 15, 2020. (4) Certain Federal land managed by the Forest Service, comprising approximately 446 acres, as generally depicted on the map entitled South Fork Trinity River Proposed Potential Wilderness and dated May 15, 2020. (5) Certain Federal land managed by the Forest Service, comprising approximately 1,256 acres, as generally depicted on the map entitled Trinity Alps Proposed Potential Wilderness and dated May 15, 2020. (6) Certain Federal land managed by the Forest Service, comprising approximately 4,386 acres, as generally depicted on the map entitled Yolla Bolly Middle-Eel Proposed Potential Wilderness and dated May 15, 2020. (7) Certain Federal land managed by the Forest Service, comprising approximately 2,918 acres, as generally depicted on the map entitled Yuki Proposed Potential Wilderness and dated May 15, 2020. (b) Management Except as provided in subsection (c) and subject to valid existing rights, the Secretary shall manage each potential wilderness area designated by subsection (a) (referred to in this section as a potential wilderness area ) as wilderness until the date on which the potential