; (2) have been implemented by an adjacent landowner or other adjacent landowners in the past; or (3) is the subject of a categorical exclusion under the National Environmental Policy Act of 1969 ( 42 U.S.C. 4321 et seq.). 306. Invasive species control At the request of an adjacent landowner, within 30 days of such a request, the Secretary shall authorize the adjacent landowner to participate in the eradication of invasive species in the Park for a period of up to 10 years, subject to renewal. Such an authorization shall provide— (1) that the invasive species proposed for eradication is identified as such by the National Park Service; (2) that the method, timing, and location of the eradication must be approved by the Secretary; and (3) appropriate indemnification of the adjacent landowner. 307. Funding clarification No additional funds are authorized to carry out the requirements of this title. Such requirements shall be carried out using amounts otherwise authorized. IV National Bear River Heritage Area Act 401. Short title This title may be cited as the National Bear River Heritage Area Act . 402. Purpose The purposes of this title include— (1) to foster a close working relationship with all levels of government, Tribes, the private sector, residents, business interests, and local communities in the States of Idaho and Utah; (2) to empower communities in the States of Idaho and Utah to exercise stewardship of their heritage while strengthening future economic opportunities; (3) to interpret, develop, and encourage stewardship of the historic, cultural, and recreational resources within the Heritage Area and the natural and scenic features of which they are a part