; and (B) advance the implementation of priority actions or needs identified in the Chesapeake Bay watershed-wide strategy adopted under subsection (b)(3)(B). (4) Cost sharing (A) Department of the Interior share The Department of the Interior share of the cost of a project funded under the grant program shall not exceed 50 percent of the total cost of the project, as determined by the Secretary. (B) Non-Department of the Interior share (i) In general The non-Department of the Interior share of the cost of a project funded under the grant program may be provided in cash or in the form of an in-kind contribution of services or materials. (ii) Other Federal funding Non-Department of the Interior Federal funds may be used for not more than 25 percent of the total cost of a project funded under the grant program. (5) Administration The Secretary may enter into an agreement to manage the grant program with an organization that offers grant management services. (d) Reporting Not later than 180 days after the date of enactment of this Act, and annually thereafter, the Secretary shall submit to Congress a report describing the implementation of this section, including a description of each project that has received funding under this section. (e) Authorization of appropriations (1) In general There is authorized to be appropriated to carry out this section $15,000,000 for each of fiscal years 2021 through 2025. (2) Supplement, not supplant Funds made available under paragraph (1) shall supplement, and not supplant, funding for other activities conducted by the Secretary in the Chesapeake Bay watershed. 112. Great Lakes monitoring, assessment, science, and research (a) Definitions In this section: (1) Director The term Director means the Director of the United States Geological Survey. (2) Great Lakes Basin The term Great Lakes Basin means the air, land, water, and living organisms in the United States within the drainage basin of the Saint Lawrence River at and upstream from the point at which such river and the Great