; and (2) a final report on the results of the studies under subsection (b) by not later than 3 years after the date of enactment of this Act. (i) Authorization of appropriations There is authorized to be appropriated to carry out this section $50,000,000, to remain available until expended. 1002. Great Lakes comprehensive flood protection study (a) Definition of Great Lakes In this section, the term Great Lakes has the meaning given the term in section 118(a) of the Federal Water Pollution Control Act ( 33 U.S.C. 1268(a) ). (b) Development The Secretary, in collaboration with the heads of other relevant Federal agencies, shall conduct, and submit to Congress a report that describes the results of, a comprehensive study to address shoreline protection and resiliency in areas affected by flooding in 2019 due to high lake water levels along the Great Lakes, including an examination of— (1) structural and nonstructural coastal storm and flood risk management measures and flood zone management strategies, including the consideration of natural features or nature-based features (as those terms are defined in section 1184(a) of the Water Infrastructure Improvements for the Nation Act ( 33 U.S.C. 2289a(a) )); (2) continued operation and maintenance of navigation projects within or along the Great Lakes impacted by flooding related to high water levels; (3) management of shoreline caving and erosion; (4) recreation needs; (5) environmental restoration needs; (6) the division of responsibilities of the Federal Government and non-Federal interests with respect to Great Lakes coastal storm and flood risk management measures; (7) the roles and responsibilities of Federal agencies with respect to Great Lakes coastal storm and flood risk management measures