Nonintercourse Act

The Nonintercourse Act (also known as the Indian Intercourse Act or the Indian Nonintercourse Act) is the collective name given to six statutes passed by the Congress in 1790, 1793, 1796, 1799, 1802, and 1834 to set Amerindian boundaries of reservations. The various Acts also regulate commerce between Americans and Native Americans. The most notable provisions of the Act regulate the inalienability of aboriginal title in the United States, a continuing source of litigation for almost 200 years. The prohibition on purchases of Indian lands without the approval of the federal government has its origins in the Royal Proclamation of 1763 and the Confederation Congress Proclamation of 1783.

The first four Acts expired after 4 years; the 1802 and 1834 Acts had no expiration. The version of the Act in force at the time of the illicit conveyance determines the law that applies. The courts have found few legal differences between the five versions of the Act. For example, three dissenting justices in South Carolina v. Catawba Indian Tribe (1986) noted that the 1793 Act expanded the scope of the 1790 Act by applying the prohibition not only to lands but "claims."

The original Act, passed on July 22, 1790 provides:

[N]o sale of lands made by any Indians, or any nation or tribe of Indians within the United States, shall be valid to any person or persons, or to any state, whether having the right of pre-emption to such lands or not, unless the same shall be made and duly executed at some public treaty, held under the authority of the United States.

The 1793 Act provides:

[N]o purchase or grant of lands, or of any title or claim thereto, from any Indians or nation or tribe of Indians, within the bounds of the United States, shall be of any validity in law or equity, unless the same be made by a treaty or a convention entered into pursuant to the constitution …

The 1796 Act provides:

[N]o purchase, grant, lease, or other conveyance of lands, or of any title or claim thereto, from any Indian, or nation or tribe of Indians, within the bounds of the United States, shall be of any validity, in law or equity, unless the same be made by treaty, or convention, entered into pursuant to the constitution …

The 1799 Act provides:

[N]o purchase, grant, lease, or other conveyance of lands, or of any title or claim thereto, from any Indian, or nation or tribe of Indians, within the bounds of the United States, shall be of any validity, in law or equity, unless the same be made by treaty or convention, entered into pursuant to the constitution …

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