Responsibilities and Authorities
The Secretary of the Interior has administrative responsibility for coordinating federal policy in the territories of American Samoa, Guam, the U.S. Virgin Islands, and the Commonwealth of the Northern Mariana Islands, and the responsibility to administer and oversee U.S. federal assistance provided to the Freely Associated States of the Federated States of Micronesia, the Republic of the Marshall Islands, and the Republic of Palau under the Compacts of Free Association. The Office of Insular Affairs executes these responsibilities on behalf of the Secretary.
Authorities of the Secretary of Interior:
- U.S. Virgin Islands – Executive Order 5566, February 27, 1931

- Guam - Executive Order 10137, August 1, 1950
- American Samoa – Executive Order 10264, July 1, 1951
- U.S. Virgin Islands – Revised Organic Act of 1954

- Executive Order 11021—Administration of the Trust Territory of the Pacific Islands by the Secretary of the Interior (Superceded by Executive Order 12569)
- Secretary’s Order #2918 – Government of the Trust Territory of the Pacific Islands

- Executive Order 12569--Management of the Compact of Free Association With the Republic of the Marshall Islands, the Federated States of Micronesia, and the Republic of Palau
- Northern Mariana Islands – Executive Order 12572, November 3, 1986
- Coral Reef Protection – Executive Order 13089, June 11, 1998

- Establishment of IGIA – Executive Order 13299, May 8, 2003

- Establishment of Assistant Secretary – Insular Areas, July 2, 2009
- White House Co-Chair of IGIA, Executive Order 13537, April 14, 2010

Catalog of Federal Domestic Assistance (CFDA) — OIA's CFDA number is 15.875