1. Short title This Act may be cited as the Columbia River In-Lieu and Treaty Fishing Access Sites Improvement Act . 2. Sanitation and safety conditions at certain Bureau of Indian Affairs facilities (a) Assessment of conditions The Secretary of the Interior, acting through the Bureau of Indian Affairs, in consultation with the affected Columbia River Treaty tribes, may assess current sanitation and safety conditions on lands held by the United States for the benefit of the affected Columbia River Treaty tribes, including all permanent Federal structures and improvements on those lands, that were set aside to provide affected Columbia River Treaty tribes access to traditional fishing grounds— (1) in accordance with the Act of March 2, 1945 (59 Stat. 10, chapter 19) (commonly known as the River and Harbor Act of 1945 ); or (2) in accordance with title IV of Public Law 100–581 (102 Stat. 2944). (b) Exclusive authorization; contracts The Secretary of the Interior, acting through the Bureau of Indian Affairs— (1) subject to paragraph (2)(B), shall be the only Federal agency authorized to carry out the activities described in this section; and (2) may delegate the authority to carry out activities described in paragraphs (1) and (2) of subsection (c)— (A) through one or more contracts entered into with an Indian tribe or tribal organization under the Indian Self-Determination and Education Assistance Act ( 25 U.S.C. 5301 et seq.)