Omnibus Insular Areas Act of 1991

Omnibus Insular Areas Act of 1991 - Title I: Insular Areas Disaster Survival and Recovery Act of 1991 - Insular Areas Disaster Survival and Recovery Act of 1991 - Authorizes appropriations to the Secretary of the Interior for the construction of facilities to protect public health and safety and to enhance the survivability of essential infrastructure in the event of disasters in insular areas.

Requires the President to provide technical assistance to insular areas which lack specific capabilities in responding to disasters. Directs the Secretary to report to specified congressional committees on the status of recovery efforts in insular areas declared to be disasters by the President.

Requires that the total contributions under the Robert T. Stafford Disaster Relief and Emergency Assistance Act for insular areas not exceed ten percent of the estimated aggregate amount of grants to be made under such Act for any disaster, except that in the case of Hurricane Hugo, September 1989, the total contribution shall not exceed 25 percent of the estimated aggregate amount of such grant.

Amends the Robert T. Stafford Disaster Relief and Emergency Assistance Act to make the Commonwealth of the Northern Mariana Islands eligible for relief and assistance.

Title II: Insular Areas Water, Sewage, and Power Needs - Authorizes the Secretary of the Interior to study how the long-term water, sewage, and power needs of American Samoa, Guam, the Northern Mariana Islands, Puerto Rico, the Trust Territory of the Pacific Islands, and the Virgin Islands can be resolved.

Amends Federal law to authorize appropriations for each fiscal year to the Secretary of Energy for grants to insular area governments to carry out projects to evaluate the feasibility of, develop options for, and encourage the adoption of efficiency and renewable energy measures which reduce the dependency of such areas on imported fuels, and improve the quality of life in the area. Sets forth factors to determine the amount to be provided for such grants.

Title III: Miscellaneous Provisions - Authorizes American Samoa, Guam, the Northern Mariana Islands, the Trust Territory of the Pacific Islands, and the Virgin Islands to make purchases through the General Services Administration.

States that a Freely Associated State Air Carrier shall not be precluded from transportation of persons and property procured, contracted for, or otherwise obtained by a Federal agency or instrumentality under an agreement whereby the agency or instrumentality pays for such transportation without provision for reimbursement.

Amends the Compact of Free Association Act of 1985 to extend the Marshall Islands agricultural and food assistance programs for an additional five years.

Amends Federal law to authorize the Northern Marianas College to receive the same $3,000,000 endowment authorized for land grant institutions in other insular areas.