(a) In general
The Secretary may assess the water resources needs of river basins and watersheds of the United States, including needs relating to—

(1) ecosystem protection and restoration;

(2) flood damage reduction;

(3) navigation and ports;

(4) watershed protection;

(5) water supply;

(6) drought preparedness;

(7) sea level rise;

(8) coastal storm damage reduction; and

(9) streambank and shoreline protection.

(b) Cooperation
An assessment under subsection (a) shall be carried out in cooperation and coordination with—

(1) the Secretary of the Interior;

(2) the Secretary of Agriculture;

(3) the Secretary of Commerce;

(4) the Administrator of the Environmental Protection Agency; and

(5) the heads of other appropriate agencies.

(c) Consultation
In carrying out an assessment under subsection (a), the Secretary shall consult with Federal, tribal, State, interstate, and local governmental entities.

(d) Priority river basins and watersheds
In selecting river basins and watersheds for assessment under this section, the Secretary shall give priority to—

(1) the Delaware River basin;

(2) the Kentucky River basin;

(3) the Potomac River basin;

(4) the Susquehanna River basin;

(5) the Willamette River basin;

(6) Tuscarawas River Basin, Ohio;

(7) Sauk River Basin, Snohomish and Skagit Counties, Washington;

(8) Niagara River Basin, New York;

(9) Genesee River Basin, New York;

(10) White River Basin, Arkansas and Missouri;

(11) New York-New Jersey Watershed Basin, which encompasses all the watersheds that flow into the New York-New Jersey Harbor and their associated estuaries, including the Hudson, Mohawk, Raritan, Passaic, Hackensack, and Bronx River Watersheds and the Hudson River Estuary;

(12) Mississippi River Watershed; and

(13) Chattahoochee River Basin, Alabama, Florida, and Georgia.

(e) Acceptance of contributions
In carrying out an assessment under subsection (a), the Secretary may accept contributions, in cash or in kind, from Federal, tribal, State, interstate, and local governmental entities to the extent that the Secretary determines that the contributions will facilitate completion of the assessment.

(f) Cost-sharing requirements

(1) Non-Federal share
The non-Federal share of the costs of an assessment carried out under this section on or after December 11, 2000, shall be 25 percent.

(2) Credit

(A) In general
Subject to subparagraph (B), the Secretary may credit toward the non-Federal share of an assessment under this section the cost of services, materials, supplies, or other in-kind contributions provided by the non-Federal interests for the assessment.

(B) Maximum amount of credit
The credit under subparagraph (A) may not exceed an amount equal to 25 percent of the costs of the assessment.