The Dobson Data Quality Workshop was the technological meeting of the Dobson total ozone data managers and experts from the central facilities of the Global Atmosphere Watch (GAW) Programme. The action was initiated by the recommendation of the 7th Ozone Research Managers Meeting that was held in Geneva, Switzerland, from 18-21 May 2008. The Scientific Advisory Group for Ozone (SAG-Ozone) of GAW provided expert guidance and the Solar and Ozone Observatory Hradec Kralove (SOO) of the Czech Hydrometeorological Institute (CHMI) took the responsibility for the local arrangements of the workshop that was held in the Conference Centre “Nové Adalbertinum” in Hradec Kralove, Czech Republic. Financial support was provided by the Ozone Secretariat of UNEP from the Vienna Convention Trust Fund and by the Ministry for the Environment of the Czech Republic. The World Meteorological Organization (WMO) assisted in the distribution of this support.