The primary role of the OAS is to provide prompt, efficient, effective and economical delivery of essential support services to all the lower courts. These support services encompass the management of personnel, leave matters, employees’ welfare and benefits, as well as the property and records management. It has six divisions performing these duties, namely:

1. RTC, RTC JURISCONCULT Personnel Division
2. MeTC, MTCC, MTC, SDC, SCC Personnel Division
3. Employees’ Leave Division
4. Employees’ Welfare and Benefits Division
5. Records Division
6. Property Division