- To administer a professional archive facility containing all historically and canonically significant records, documents, artifacts and materials pertinent to the Archdiocese of St. Louis.
- To provide the Archbishop, Chancery, and all offices and agencies of the Archdiocese with information necessary to perform their duties including guidance on the retention of permanent records.
- To maintain the sacramental records for closed parishes including updating records and filling requests for records by the individuals named in the record.
- To serve as the "repository of last resort" for church-related institutions and agencies engaged in educational, charitable and social service work when the originating agency goes out of existence.
- To organize materials in an orderly and systematic fashion so as to make these assets available to promote the mission of the Archdiocese of St. Louis.
- To maintain a physical facility to store archive holdings properly, make necessary repairs and secure these assets against theft, damage, environmental and human hazards.
- To pursue an aggressive acquisitions policy for securing relevant records and materials of the Archdiocese of St. Louis.
- To assist parishes and agencies of the Archdiocese in the adminstration of current, historical and sacramental records and their preservation including emergency preparedness for records.
- To assist parish staff with the transfer of records to the archives to preserve the memory of the Catholic Church in these parishes.
- To assist researchers with reference services and access to relevant materials.
- To conduct educational and outreach programs on the Archdiocese of St. Louis.
- To maintain the professional competence of the Archives staff.
