Some records series are subject to confidentiality restrictions with the following closure periods: 30 years from date of creation for general administration files, legal records and financial files; 50 years from date of creation for governmental records, including papers of the College Governing Body and College Council, and constituent committees; 100 years from date of creation for personal and personnel records, including tutorial files, staff and fellows files and appointment records, personal finance and pension records. Records containing sensitive, confidential or personal information remain closed for 100 years.

Access to open records is by appointment only.