Directory · 10 entries
Revision policies of statistical agencies: directory
This directory sets out how statistics agencies revise published figures and how they mark corrections. Each row comes from the agency's own policy or methodology page. Blank cells mean the page read did not state the fact. ONS, for example, says revisions are not published to correct a mistake 1, and BEA releases advance, second and third GDP estimates before annual updates 2. Eurostat plans major revisions well in advance 4.
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Office for National Statistics (ONS)
- Jurisdiction
- United Kingdom
- Revision policy
- Revisions add improved methods or new data and are not used to fix mistakes. Errors follow a separate correction policy and are corrected as soon as possible 1
- How revisions or errors are shown
- Revisions noted in the next release. Corrections shown in a blue collapsible banner titled Correction 1
- Source document
- Revisions Policy and Correction of Errors Policy, updated 9 August 2024 1
Bureau of Economic Analysis (BEA)
- Jurisdiction
- United States
- Revision policy
- Advance, second and third quarterly GDP estimates, annual updates covering at least five years, and benchmark updates about every five years 2
- How revisions or errors are shown
- Publishes revision statistics. Advance to latest real GDP growth revised by 1.3 points on average without regard to sign, 1999 to 2025 2
- Source document
- Comparisons of Revisions to Real GDP, October 2026 2
Bureau of Labor Statistics (BLS), payroll survey
National Center for Health Statistics (NCHS)
- Jurisdiction
- United States
- Revision policy
- Provisional death counts revised for earlier weeks. Final data typically around December of the following year 6
- How revisions or errors are shown
- About 65 percent complete within 2 weeks, based on 2021 data. Page archived 27 September 2023 6
- Source document
- Technical Notes, Provisional Death Counts for COVID-19, 20 September 2023 6
Eurostat
- Jurisdiction
- European Union
- Revision policy
- Routine, major and unscheduled revisions. National accounts benchmark revisions every five years. General revision policy adopted in 2023 4
- How revisions or errors are shown
- Dataset metadata under Data revision policy and Data revision practice 4
- Source document
- Data revision policy 4
Central Statistics Office (CSO)
- Jurisdiction
- Ireland
- Revision policy
- Follows European Statistics Code of Practice indicators on revisions, including advance notice of major revisions 7
- How revisions or errors are shown
- Errors corrected at the earliest possible date and publicised, per the quoted code indicator 7
- Source document
- Guiding Principles, CSO General Revisions Policy 7
Statistics Denmark
- Jurisdiction
- Denmark
- Revision policy
- Preliminary and final figures. Major revisions of macro-economic statistics every five years. Some series have open-ended interim revisions 8
- How revisions or errors are shown
- Corrections shown in red with a date, with email to subscribers 8
- Source document
- Revision and error policy 8
Australian Bureau of Statistics (ABS)
- Jurisdiction
- Australia
- Revision policy
- Annual benchmarks first published in the September quarter release, which normally allows up to sixteen quarters of revision 9
- How revisions or errors are shown
- Eight quarters of revisions published in the national income, expenditure and product tables 9
- Source document
- Australian System of National Accounts, Concepts, Sources and Methods 2020-21, Revisions, 9 July 2021 9
Ministry of Statistics and Programme Implementation (MoSPI)
- Jurisdiction
- India
- Revision policy
- Annual GDP moves from first and second advance estimates to provisional, then first, second and third revised estimates 10
- How revisions or errors are shown
- Fixed release dates, with provisional estimates on 31 May and revised estimates on 31 January 10
- Source document
- Statement on Release Calendar and policy of revision, effective 16 November 2016 10
Statistics South Africa (Stats SA)
- Jurisdiction
- South Africa
- Revision policy
- Benchmarked nominal GDP and real GDP rebased to 2015 prices, covering the first quarter of 1993 to the fourth quarter of 2020 11
- How revisions or errors are shown
- Revised data published on 25 August 2021, with a South African Reserve Bank notice on 26 August 2021 11
- Source document
- SARB notice on the revision of South Africa's national accounts and balance of payments statistics 11
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Notes
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Sources
- Office for National Statistics: The Office for National Statistics' Revisions Policy and Correction of Errors Policy (9 August 2024)
- Bureau of Economic Analysis: Comparisons of Revisions to Real GDP (October 2026)
- U.S. Bureau of Labor Statistics: Employment Situation Technical Note (2 October 2026)
- Eurostat: Data revision policy
- U.S. Bureau of Labor Statistics: CES National Benchmark Article (11 February 2026)
- CDC National Center for Health Statistics: Technical Notes, Provisional Death Counts for COVID-19 (20 September 2023)
- Central Statistics Office: Guiding Principles CSO General Revisions Policy
- Statistics Denmark: Revision and error policy
- Australian Bureau of Statistics: Revisions, Australian System of National Accounts Concepts, Sources and Methods 2020-21 (9 July 2021)
- Ministry of Statistics and Programme Implementation: Statement on Release Calendar of Annual and Quarterly Estimates of GDP and policy of revision (16 November 2016)
- South African Reserve Bank: Notice on the Revision of South Africa's national accounts and balance of payments statistics (26 August 2021)