The Department of Administration, Human Resources Division provides timely and responsive expertise, resources, and services to fully support the department/agencies under the jurisdiction of the Department of Administration in the recruitment, management and retention of a high-performing workforce. The Human Resources Division conducts recruitment activities; provides guidance and support for personnel actions; classifies positions based on duties and responsibilities; ensures compensation of employees at proper pay levels; supports the collective bargaining process; directs effective employee-employer relations; administers employee compensation benefits; and ensures a safe and healthy work environment.

Classification and Pay Branch is responsible for classification reviews such as creations, amendments, reassignment of pay grades, administrative reviews.

Drug Testing Branch is responsible to for the administration, enforcement and implementation to provide a safe workplace, discourage drug abuse.

Employee Management Relations Branch is responsible for planning, coordinating and administering employee-management relation activities such as Employee Grievance and Adverse Action Procedures; Performance Rating Appeal Procedures; Leave Sharing Program; Incentive Awards Program, PEMRA Rules and Regulations, Unfair Labor Practices for  the government of Guam.

Equal Employment Opportunity Branch is responsible for the Equal Employment Opportunity Program for the Government of Guam in accordance with E.O. 2006-16, the Civil Rights Act of 1964, the EEO Act of 1981 and the laws which protect persons with disabilities.

Records Branch is responsible for the processing and reviewing of all Notification of Personnel Actions for all line agencies and departments.

Recruitment Branch is responsible for planning and coordinating recruitment activities consisting of the posting of job announcements for non-autonomous departments and agencies, receiving and evaluating job applications, and certifying applicants for interviews.

Regulatory and Compliance Branch is responsible for conducting quality control reviews, and providing comments and recommendations relative to the administrative and compliance with the DOA  Personnel Rules and Regulations, personnel policies, related statutes, etc.

Test Development and Validation Branch is responsible for administering employment examination for positions that the Director of Administration has designated for testing.

Training and Development Branch is responsible for planning and coordinating training activities consisting for non-autonomous departments and agencies of the government of Guam.