World Reference Base for Soil Resources (WRB) is a worldwide-applicable soil classification system thathas been endorsed by the IUSS Council as the IUSS international correlation system. The first edition waspublished in 1998, the second in 2006 and the third is due to be presented in 2014 at the World Congressin Korea. The second edition (2006) avoids stronger hierarchies and is concentrated on the classificationof pedons. For creating map legends an amendment allowing stronger hierarchies was published in 2010.One of the aims of the third edition is to have a common document for both purposes. Field testing of thesecond edition revealed the need for some (mostly minor) changes in the definitions, which is the secondaim. A third aim is writing the definitions in a more didactical way. A fourth aim of the third edition is toensure a better WRB classification of Australian soils. There was never before a broad testing of WRB inAustralia and some soils, widespread in Australia and rare in other parts of the world, may be daifficult tobe allocated according to WRB, among these being the sodic texture-contrast soils. Common excursionsdirectly before this conference should help to find possible adjustments of WRB definitions to encompassthese soils. Some examples will be given in this presentation.
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