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The IFC specification is available at the following locations for online use or for download.
All Versions | Documentation, Schemata etc. |
Note * out of date - these releases are not any longer supported ** out of date - for IFC2x exchange use the IFC2x Add 1 instead, for new implementations go directly to IFC2x3 *** out of date - for IFC2x2 exchange use the IFC2x2 Add 1 instead, for new implementations go directly to IFC2x3 x documentation and consistency rule update of IFC2x3