Documentations

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The IFC specification is available at the following locations for online use or for download.


Version online access download
IFC4 Add2 (2016) Industry Foundation Classes Release 2x4 (IFC4) IFC4 - Addendum 2 (Final Standard) Specification download registration
IFC4 Add1 (2014) Industry Foundation Classes Release 2x4 (IFC4) IFC4 - Addendum 1 (Final Standard) Specification download registration
IFC4 Final (2013) Industry Foundation Classes Release 2x4 (IFC4) Release Candidate 3 Specification download registration
IFC 2x3 TC1 x(2007) IFC 2x Edition 3 Technical Corrigendum 1 (IFC 2x3 TC1) Specification download registration
IFC 2x3 IFC 2x Edition 3 (IFC 2x3) Specification select download
IFC 2x2 Add 1 IFC 2x2 Addendum 1 Specification
IFC 2x2 *** IFC 2x Edition 2 (IFC 2x2) Specification
IFC 2x Add 1 IFC 2x Addendum 1 Specification
IFC 2x ** IFC 2x Specification
IFC 2.0 * IFC 2.0 Object Model Reference
IFC 1.5.1 * IFC 1.5.1 Object Model Reference


 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 *   out of date - these releases are not any longer supported
 **  out of date - for IFC2x exchange use the IFC2x Add 1 instead, for new implementations go directly to IFC2x3
 *** out of date - for IFC2x2 exchange use the IFC2x2 Add 1 instead, for new implementations go directly to IFC2x3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