In November 2001, the Office of Aircraft Services (OAS) was realigned under the National Business Center (NBC). OAS, headquartered in Boise, ID was established by Secretarial Order in 1973 "…to raise the safety standards, increase the efficiency, and promote the economical operations of aircraft activities in the Department of the Interior." OAS is responsible for Interior's aviation safety program. Through this leadership, OAS provides centralized technical and administrative services to all Interior bureaus and, through individual agreements, to several other federal and state offices.

Responsibilities for aviation activities are assigned geographically between the Headquarters office, a Regional Office in Anchorage, Alaska, and Area Offices in Atlanta, Georgia, and Boise, Idaho (with a satellite office in Phoenix, Arizona).

The OAS Headquarters, through offices in Human Resources, Aviation Safety, Technical Services, Evaluation Program, Financial Management, Acquisition Management, and Information Resources Management provides administrative oversight, support, and technical direction. A headquarters staff of 44 employees and 7 contract personnel perform many functions including:

Providing all necessary administrative support services, such as personnel actions, procurement, payroll, information management, and accounting;

Procuring DOI-owned aircraft, commercial aviation services, and other aviation-related services in support of bureau programs;

Developing and implementing DOI safety and aircraft accident prevention programs;

Investigation all aircraft mishaps occurring in Departmental aviation operations, and represent the Department on all aircraft accident investigations where DOI is involved;

Establishing and maintaining standards governing operational procedures, aircraft maintenance, aircrew qualifications and proficiency, and maintenance personnel qualifications;

Developing and implementing an aviation user training program to meet Department needs; and

Prescribing procedures for justifying, budgeting, and managing the financial aspects of aircraft owned and/or operated by the Department;

Evaluating bureau aviation programs.