; 33 U.S.C. 403 ) or section 404 of the Federal Water Pollution Control Act ( 33 U.S.C. 1344 ) or categorical permission under section 14 of the Act of March 3, 1899 (commonly known as the Rivers and Harbors Act of 1899 ) (30 Stat. 1152, chapter 425; 33 U.S.C. 408 ). (3) Length of process To the maximum extent practicable, and without affecting the obligations or requirements of any Federal environmental law, including the National Environmental Policy Act of 1969 ( 42 U.S.C. 4321 et seq.), the Federal Water Pollution Control Act ( 33 U.S.C. 1251 et seq.), and the Endangered Species Act of 1973 ( 16 U.S.C. 1531 et seq.), the Commission and the Secretary shall ensure that the environmental review process described in paragraph (1) is completed in a timely manner so that the Commission is able to make a final decision on an application for a license by not later than 2 years after the date on which the Commission receives a completed licensing application. (4) Purpose and need Notwithstanding the authority of the Secretary in determining overall project purposes under part 230 of title 33, Code of Federal Regulations (or successor regulations), the Secretary, consistent with the Memorandum of Understanding, shall coordinate with the Commission to define the purpose and need for an environmental impact statement or environmental assessment as part of the environmental review process described in paragraph (1). (d) Certification No hydropower facility planned under this section shall be approved by the Commission or the Secretary unless the Secretary certifies in writing that the proposed hydropower facility will not adversely affect or undermine— (1) the structural integrity of the qualifying facility; and (2) the ability of the qualifying facility— (A) to achieve the congressionally authorized purposes of the facility