The Office of Mission Support (OMS) provides a broad range of enterprise mission support functions and infrastructure necessary for EPA OIG to complete its mission. OMS helps OIG achieve its mission and goals through the effective employment of four distinct areas:

Control Center: Provides support services for EPA OIG HQ and Regional personnel, stakeholders, and the public by improving efficiency, coordination, and customer experience in the functional areas of facilities management, space management, property management, records management and continuity of operations.

Human Resources Directorate: Provides operational support for activities such as recruitment, staffing, classification, retirement, and benefits liaison; employee training and professional development; performance management; employee relations; workforce planning; and executive resources.

Budget Directorate: Provides support services to the OIG in the areas of budget formulation, budget execution, and interagency agreements, increasing business analysis capability; instituting performance-based resource strategy; and strengthening controls to promote assurance and mission accomplishment.

Acquisitions Directorate: Provides support services to the OIG in the areas of planning, awarding and administering contracts, including issuing and interpreting acquisition regulations; administering training for contracting and program acquisition personnel; providing information technology improvements for acquisition systems; and strengthening controls to promote assurance and mission accomplishment.

采購局：在規(guī)劃、授予和管理合同方面向OIG提供支持服務(wù)，包括發(fā)布和解釋采購條例；管理合同和采辦人員的培訓(xùn)；為采購系統(tǒng)提供信息技術(shù)改進(jìn)；以及加強(qiáng)控制，以促進(jìn)保證和完成任務(wù)。