Replaces a reference to the New England Interstate Water Pollution Control Commission with a 'fiscal agent' in subsection (a)(2)(A); adds a new subsection establishing selection, periodic assessment, stakeholder consultation, noncompetitive funding conditions, transfer and continuity rules, reporting to Congress, and responsibilities for a fiscal agent; redesignates existing subsections (g)-(i) as (h)-(j); inserts a new subsection authorizing the United States Section of the Great Lakes Fishery Commission to undertake and support work in the Lake Champlain and Saint Lawrence River basins and to work with specified partners; and adds definitions for 'fiscal agent' and 'Steering Committee' in the redesignated definitions subsection.