A bill to increase the amount authorized to be appropriated with respect to the Sewall-Belmont House National Historic Site.

(Measure passed Senate, amended)

Increases the authorization of appropriations for the Sewall-Belmont House National Historic Site, District of Columbia.

Directs the Secretary of the Interior: (1) in order to provide a planning framework for the management, preservation, and interpretation of the site, to develop a statement for management, a statement for interpretation, a scope of collections statement, and a historical structures report; and (2) to transmit these documents to specified congressional committees.

Directs the National Park Service to enter into negotiations with the owner of the Sewall-Belmont House to prepare a revised cooperative agreement detailing each of the party's responsibilities and to transmit such agreement to the appropriate committees within 30 days after its execution.

Adds one member to the Delta Region Preservation Commission who shall have experience as a folklorist and who is familiar with the cultures of the region.

Authorizes appropriations for: (1) construction of the Saipan harbor project in the Northern Mariana Islands; and (2) planning, design, and construction for replacement of the main breakwater and for dredging of the San Jose harbor on the Island of Tinian in the Northern Mariana Islands. Applies specified cost-sharing provisions to the latter project, with specific consideration of possible defense uses of the harbor in determining project benefits.