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Data a dadansoddiadau o Gyfrifiad 2021
Rehearsing and testing processes, systems and services.
As part of our preparations for Census 2021, we at the Office for National Statistics (ONS) held a census rehearsal in autumn 2019.
In spring 2017, Office for National Statistics (ONS) held a large-scale test in several parts of the country in preparation for the next census.
In July 2016, Office for National Statistics (ONS) held a small online test in Telford and the Wrekin.