AGREEMENTS.

SEC. 606. AGREEMENTS. Funds appropriated pursuant to this title may be made available to the District or a local agency only if the District or local agency, as applicable, has entered into a binding agreement with the Secretary— (1) under which the District or the local agency is required to pay the non-Federal share of the costs of construction required by section 604(a); and (2) governing the funding of planning, design, and compliance activities costs under section 604(b).