The Secretary of the Interior is authorized to acquire by donation or with donated funds, or to acquire by purchase, the land and buildings immediately adjacent to, but not including, the St. George’s Methodist Church property, which land and buildings are identified generally as 318, 320, and 322 New Street, for inclusion in the Independence National Historical Park: Provided, That the Secretary shall first enter into an agreement with the proprietor or proprietors of the St. George’s Methodist Church property, such agreement to contain the usual and customary provisions for the protection and physical maintenance of said church property, without expense to the United States, in keeping with, but not as a part of, the nearby Independence National Historical Park and providing for its continued use, without limitation or control, for customary church purposes.

The Secretary of the Interior is authorized to acquire by donation or with donated funds, or to acquire by purchase, from the Redevelopment Authority of the City of Philadelphia the land and interests in land immediately adjacent to, but not including the Old Saint Joseph’s Church property in the city of Philadelphia, Pennsylvania, which land and interests in land are identified on the records of the city of Philadelphia as 324, 326, 328, 330, 332, 334 and 336 Walnut Street, for inclusion in the Independence National Historical Park: Provided, That the Secretary shall first enter into an agreement with the proprietor or proprietors of the Old Saint Joseph’s Church property, such agreement to contain the usual and customary provisions for the protection and physical maintenance of such church property, without expense to the United States, in keeping with, but not as a part of the nearby Independence National Historical Park and providing for its continued use, without limitation or control, for customary church purposes.

In order to include in Independence National Historical Park the site of the Graff House where Thomas Jefferson wrote the Declaration of Independence, the Secretary of the Interior is authorized to acquire by purchase, donation, or with donated funds all or any interests in the land and improvements thereon located at the southwest corner of Market and South Seventh Streets, in the city of Philadelphia, State of Pennsylvania, and more particularly described as follows:

Beginning at a point located at the intersection of the southerly line of Market Street with the westerly line of South Seventh Street, thence southerly along the west side of South Seventh Street 124 feet, thence westerly 50 feet, thence northerly 124 feet, thence easterly 50 feet to the point of beginning.

The Secretary is further authorized to erect on the site aforesaid, with donated funds, a replica of the Graff House and to furnish and maintain the same.

The lands hereinbefore described and the building to be erected thereon shall become a part of the Independence National Historical Park and shall be administered in accordance with the laws and regulations applicable thereto.

There are authorized to be appropriated such sums, but not more than $200,000, as may be necessary for acquisition of the land described in section 407m–3 of this title: Provided, That the Secretary of the Interior shall not obligate or expend any moneys herein authorized to be appropriated for acquisition of the land unless and until commitments are obtained for donations in an amount which in the judgment of the Secretary is sufficient to provide a replica of the Graff House in accordance with section 407m–4 of this title.

The Secretary of the Interior is authorized to convey on behalf of the United States a certain tract of land, or any interest therein, being a portion of Independence National Historical Park project B, embracing fifteen thousand six hundred and fifty square feet, more or less, and situate on the northeast corner of South Fifth Street and Marshall Court (formerly Manning Street), city of Philadelphia, Pennsylvania, together with the improvements thereon, to the Redevelopment Authority of the City of Philadelphia in exchange for property, or interest therein, owned by the authority of approximately equal value and which the Secretary deems necessary for use in connection with the Independence National Historical Park. Property conveyed by the Secretary pursuant to this section shall thereupon cease to be a part of the park, and the property acquired in exchange therefor shall thereafter be a part of the park, subject to all the laws and regulations applicable to the park.

The administrative boundary between Independence National Historical Park and the United States Customs House along the Moravian Street Walkway in Philadelphia, Pennsylvania, is hereby modified as generally depicted on the drawing entitled “Exhibit 1, Independence National Historical Park, Boundary Adjustment”, and dated May 1987, which shall be on file and available for public inspection in the Office of the National Park Service, Department of the Interior. The Secretary of the Interior is authorized to accept and transfer jurisdiction over property in accord with such administrative boundary, as modified by this section.

In furtherance of the general purposes of this subchapter as prescribed in section 407m of this title, the Secretary of the Interior is authorized to enter into cooperative agreements with the city of Philadelphia to assist in the preservation and interpretation of the property known as the Independence Hall National Historic Site and with the Carpenters’ Company of Philadelphia to assist in the preservation and interpretation of Carpenters’ Hall, in connection with the Independence National Historical Park. Such agreements shall contain, but shall not be limited to, provisions that the Secretary of the Interior, through the National Park Service, shall have right of access at all reasonable times to all public portions of the property now within Independence Hall National Historic Site and to Carpenters’ Hall for the purpose of conducting visitors through such buildings and grounds and interpreting them to the public, that no changes or alterations shall be made in the property within the Independence Hall National Historic Site, including its buildings and grounds, or in Carpenters’ Hall, except by mutual agreement between the Secretary of the Interior and the other parties to the contracts.

The Secretary of the Interior, in his discretion, is authorized to construct upon a portion of the land described in section 407m of this title, or upon other land that may be donated for such purpose, which property he is authorized to accept, such offices and administration buildings as he may deem advisable, together with a suitable auditorium for the interpretation of the historical features of the national historical park. The Secretary of the Interior is also authorized to accept donations of property of national historical significance located in the city of Philadelphia which the Secretary may deem proper for administration as part of the Independence National Historical Park. Any property donated for the purposes of this section shall become a part of the park, following its establishment, upon acceptance by the United States of title to such donated property. The Secretary of the Interior is authorized to permit the American Philosophical Society, a nonprofit corporation, without cost to the United States, to construct, operate, and maintain in the park a building to be located on approximately the original site of historic Library Hall to house the library of the American Philosophical Society and any additions to said library, such permission to be granted the society pursuant to a lease, contract, or authorization without charge, on such terms and conditions as may be approved by the Secretary and accepted by the society, and for such length of time as the society shall continue to use the said building for the housing, display, and use of a library and scientific and historical collections: Provided, That the plans for the construction of the building and any additions thereto shall be approved by the Secretary of the Interior.

The Secretary of the Interior is authorized, in his discretion, to establish a suitable advisory commission of not to exceed eleven members. The members of the advisory commission shall be appointed by the Secretary of the Interior, with three members to be recommended by the Governor of Pennsylvania, three by the mayor of Philadelphia, and one each by the Carpenters’ Company of Philadelphia and the Independence Hall Association.

The functions of the advisory commission shall be to render advice to the Secretary of the Interior, from time to time, upon matters which the Secretary of the Interior may refer to them for consideration.

The administration, protection, and development of the park shall be exercised under the direction of the Secretary of the Interior by the National Park Service, subject to the provisions of the Act of August 25, 1916 (39 Stat. 535; 16 U.S.C. 1–4),1

For the purpose of acquiring the property described in section 407m of this title, there is authorized to be appropriated not to exceed the sum of $12,792,000. Funds appropriated pursuant to this subchapter shall be available for any expenses incidental to acquisition of property as prescribed by this subchapter, including the employment of the necessary services in the District of Columbia, and including to the extent deemed necessary by the Secretary of the Interior, the employment without regard to the civil-service laws of such experts and other officers and employees as are necessary to carry out the provisions of this subchapter efficiently and in the public interest.

Following the acquisition by the Federal Government of properties pursuant to this subchapter and until such time as the buildings thereon are demolished or the properties and buildings thereon are devoted to purposes of the Independence National Historical Park as provided herein, the Secretary is authorized, with respect to the said properties, to administer, operate, manage, lease, and maintain such properties, and lease, demolish, or remove buildings, or space in buildings thereon, in such manner as he shall consider to be in the public interest. Any funds received from leasing the said properties, buildings thereon, or space in buildings thereon, shall be deposited to the credit of a special receipt account and expended for purposes of operating, maintaining, and managing the said properties and demolishing or removing the buildings thereon. The Secretary, in his discretion and notwithstanding other requirements of law, may exercise and carry out the functions authorized herein by entering into agreements or contracts with public or private agencies, corporations, or persons, upon such terms and conditions as he deems to be appropriate in carrying out the purposes of this subchapter.