Thirty year rule
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The "thirty-year rule" is the popular name given to a law in the United Kingdom, the Republic of Ireland, and Australia that provides that the yearly cabinet papers of a government will be released publicly thirty years after they were created.
In the United Kingdom, the Public Records Act 1958 states that "Public records ....other than those to which members of the public have had access before their transfer ..., shall not be available for public inspection until they have been in existence for fifty years or such other period... as the Lord Chancellor may, ... for the time being prescribe as respects any particular class of public records": the closure period was reduced from fifty to thirty years by an amending act of 1967, passed during Harold Wilson's government. Among those who had repeatedly urged the scrapping of the fifty-year rule was the historian A.J.P. Taylor.
There were in effect two quite distinct elements to the "rule": the first required that records be transferred from government departments to the Public Record Office (now The National Archives) after thirty years unless specific exemptions were given (by the Lord Chancellor's Advisory Council on Public Records); the second that they would be opened to public access at such time unless they were deemed likely to cause "damage to the country's image, national security or foreign relations" if they were to be released.
Significant changes were made to the rules as a consequence of the Freedom of Information Act 2000 (FOI) (which came into full effect on 1 January 2005). The FOI act essentially removed the second of the thirty-year rules (the access one), and replaced it with provisions allowing citizens to request a wide range of information before any time limit has expired; and also removed some of the exemptions which had previously applied at the 30-year point. After thirty years, records are transferred to The National Archives, and are reviewed under the FOI act to see if they should be opened. The only rationale for keeping them closed within The National Archives is if an FOI exemption applies.
As a result of this change, releases now happen monthly, rather than annually, and include more recent events, rather than only those over thirty years old.
An independent inquiry chaired by Paul Dacre, editor of the Daily Mail, recommended in January 2009 that the last restrictions on the release of information, such as cabinet minutes, should be reduced to a 15-year embargo and phased in over a 15-year period.
In Australia, the thirty-year rule applied to Commonwealth (federal) government records, except for Cabinet handbooks (closed for 50 years) and raw census records (closed for 99 years). These periods were set out in the Archives Act 1983.
In 2009, the Archives Act was amended to reduce closed period from 30 to 20 years, with cabinet notebooks reduced from 50 to 30 years. Census records remain closed for 99 years to protect the privacy of individuals.
Cabinet papers for a full year are released on 1 January each year.
Israel adopted the British model of a thirty-year rule as the basis for reviewing and declassifying its foreign policy documents. Israeli declassification policy is based on the Archives law of 1955. The principle of the law is that all material is to be released after thirty years, subject to limitations based on damage to state security, foreign policy or personal privacy. In practice this means that declassification of documents are fixed at different periods based on type of material and date of production.
The original Law has been modified and updated a number of times. Following a 2010 update of the legislation, the office of the prime minister released as statement explaining that "the new regulations shorten the period after which non-security-related material may be viewed, from 30 to 15 years, while lengthening the confidentiality period of certain defense-related documents to 70 years in cases in which Israel's security conditions require it".
- Classified information in the United Kingdom
- Freedom of Information Act 2000
- Freedom of information in the United Kingdom
- Freedom of information legislation
- The National Archives
- UK Public Records Act 1958 
- Deborah Summers "30-year rule on government disclosure should be halved, Dacre inquiry says", The Guardian, 29 January 2009.
- "Explanatory Memorandum to Freedom of Information (Removal of Conclusive Certificates and Other Measures) Bill 2008". Department of Prime Minister and Cabinet.
- Pappe, Ilan (1999). The Israel/Palestine Question. Routledge. p. 153. ISBN 0415169488.
- Fischer, Louise (2008). 8e Conference Internationale Des Editeurs de Documents Diplomatiques 8th International Conference of Editors of Diplomatic Documents: Des Etats Et de ... about States and Uno (Diplomatie Et Histoire). European Interuniversity Press. p. 78. ISBN 9052013896.
- Ravid, Barak (28/7/2010). "State archives to stay classified for 20 more years, PM instructs". Haaretz. Retrieved 18/10/2012.
- 30 Year Rule Review (UK)
- The National Archives (UK)
- Fact sheet 10 – Access to records under the Archives Act, National Archives of Australia