| IA Title | Date | IA Description |
|---|---|---|
| CV-2x3-100 | 2006 02 24 | Correct usage of IfcMaterialLayerSetUsage for IfcSlab [modified 15-12-2006] |
| CV-2x3-101 | 2006 02 24 | Requested support of IfcEllipse for profile definitions |
| CV-2x3-102 | 2006 02 24 | No support of b-splines within current IFC implementations |
| CV-2x3-103 | 2006 02 24 | Independent profile geometry for doors and windows [modified 04-11-2011] |
| CV-2x3-104 | 2006 02 24 | Number of doors and windows within one opening is restricted to max 1 |
| CV-2x3-105 | 2006 02 24 | Export of bounding box is no longer mandatory |
| CV-2x3-106 | 2006 02 24 | Agreed use of geometric representation context and sub context [modified 05-05-2006 and 06-07-2011] |
| CV-2x3-107 | 2006 02 24 | Handling of complex opening shapes (reveals, vertical extrusions) [modified 05-05-2006] |
| CV-2x3-108 | 2006 02 24 | Revoke previous agreement on extending the opening thickness |
| CV-2x3-109 | 2006 02 24 | Revoke the agreement to provide Pset_Draughting |
| CV-2x3-110 | 2006 02 24 | Revoke the agreement on not allowing vertical clipping planes [modified 06-07-2011] |
| CV-2x3-111 | 2006 02 24 | No duplicated points within a polyloop or polyline |
| CV-2x3-112 | 2006 02 24 | Support for CSG geometry is required on import [modified 06-07-2011, 06-02-2012] |
| CV-2x3-113 | 2006 02 24 | Support for annotation pattern for hatching is restricted to model hatches [modified 05-05-2006] |
| CV-2x3-114 | 2006 02 24 | Material presentation information for parametric doors and windows not supported |
| CV-2x3-115 | 2006 02 24 | Matching imported styles (curve fonts, hatching patterns, text fonts, RGB colours) to system internal styles |
| CV-2x3-116 | 2006 03 07 | No use of subtypes of IfcStyledItem for assigning presentation information |
| CV-2x3-117 | 2006 04 13 | Use of the same parameterization for profiles in IFC2x2 and IFC2x3 based on center of bounding |
| CV-2x3-118 | 2006 04 21 | Agreement to use PatternStart and PointOfReferenceHatchLine in IfcFillAreaStyleHatching |
| CV-2x3-119 | 2006 05 05 | Geometry for decomposed elements shall either be given at the container or at the part level [modified 20-05-2011] |
| CV-2x3-120 | 2006 05 05 | Material information for decomposed elements shall only be given at the element part level [modified 06-07-2011] |
| CV-2x3-121 | 2006 05 05 | Decomposed elements shall have a maximum of 1 level decomposition depth [withdrawn 07-10-2011] |
| CV-2x3-122 | 2006 05 05 | Extrusion thickness of opening elements should be within reasonable boundaries |
| CV-2x3-123 | 2006 05 05 | Opening elements shall be within the wall face or slab profile (not misused as arbitrary cuttings) [modified 26-02-2008] |
| CV-2x3-124 | 2006 05 05 | Non vertical walls shall not be exchanged as instances of IfcWallStandardCase |
| CV-2x3-125 | 2006 05 05 | Agreements on the limited subset of hatching style entities and attributes to be supported |
| CV-2x3-126 | 2006 05 05 | Agreements on the limited subset of text style entities and attributes to be supported |
| CV-2x3-127 | 2006 05 05 | Agreements on the limited subset of surface style entities and attributes to be supported |
| CV-2x3-128 | 2006 11 24 | Agreement on how to use material layer set and usage for wall types |
| CV-2x3-129 | 2006 11 24 | Agreement on how to use CAD layer assignment and the support of layer with style information |
| CV-2x3-130 | 2006 11 24 | Agreement on how to use and override curve style information |
| CV-2x3-131 | 2006 11 24 | Agreement on how to use and override surface style information |
| CV-2x3-132 | 2006 11 24 | Agreement on import of special characters in significant names (like layer, material, or property name) |
| CV-2x3-133 | 2006 11 24 | Restrict the insertion point of doors and windows in regard to the opening |
| CV-2x3-134 | 2007 03 13 | For a complex wall the opening has to be associated with the aggregate (the IfcWall) and not with the parts (the IfcBuildingElementPart's) |
| CV-2x3-135 | 2007 03 13 | Assignment of surface color to surface models (dealing with the backface issue) |
| CV-2x3-136 | 2007 03 13 | Agreement on exporting the construction type |
| CV-2x3-137 | 2007 03 13 | Agreement on the export of profile names for section profiles in addition to geometric parameters |
| CV-2x3-138 | 2007 05 23 | Agreement on providing a presentation layer for doors and windows based on parametric description |
| CV-2x3-139 | 2007 05 23 | Agreement on an add-on to the coordination view to include base quantities |
| CV-2x3-140 | 2007 05 23 | Agreement on an add-on to the coordination view to include space boundaries |
| CV-2x3-141 | 2007 05 23 | Agreement on having maximum of one instance of IfcSite |
| CV-2x3-142 | 2007 05 23 | Agreement on having at least one instance of IfcBuilding as part of the spatial structure |
| CV-2x3-143 | 2007 05 23 | Agreement on having the containment tree and the relative placement tree identical for spatial elements |
| CV-2x3-144 | 2008 02 27 | Agreement on roofs being aggregates and shall have at least one contained element and no own geometry [withdrawn 06-02-2012] |
| CV-2x3-145 | 2008 02 27 | Agreement on clipping of round walls to require compatible geometry for wall body and restricted clipping planes |
| CV-2x3-146 | 2008 02 27 | Agreement on consistent export of shells by having each vertex defined only once and shared by edges |
| CV-2x3-147 | 2008 02 27 | Agreement on single and double-sided faces in surface models to be determined by IfcSurfaceStyle |
| CV-2x3-148 | 2008 02 27 | Agreement on exporting geographic data if available, including latitude, longitude, elevation, address and true north [modified 13-07-2011] |
| CV-2x3-149 | 2008 02 27 | Agreement to add support for certain types of IfcCovering to be added to the coordination view |
| CV-2x3-150 | 2008 06 24 | Agreement on how to split an opening between two walls (e.g. in a staircase) |
| CV-2x3-151 | 2008 06 24 | Agreement on how to differentiate space boundaries between first level and second level |
| CV-2x3-152 | 2008 06 24 | Agreement that all spaces shall have a body shape representation |
| CV-2x3-153 | 2008 06 24 | Agreement that virtual elements should/could be ignored on import |
| CV-2x3-154 | 2008 06 24 | Agreement on the compression mechanism for ifcZIP [modified 23-10-2008] |
| CV-2x3-155 | 2008 06 24 | Agreement on implementation of first level space boundaries |
| CV-2x3-156 | 2008 06 24 | Agreement on exporting CAD presentation layer for multi-layer walls [modified 20-03-2011] |
| CV-2x3-157 | 2008 10 23 | Agreement on a particular type of building element proxy to exchange provisions for voids |
| CV-2x3-158 | 2010 09 01 | Agreement that element parts in element containers shall not be individually contained within the spatial structure [modified 27-02-2013] |
| CV-2x3-159 | 2010 09 01 | Agreement that openings that are subtracted from elements shall not be individually contained within the spatial structure |
| CV-2x3-160 | 2010 09 01 | Agreement that element parts in element containers shall be positioned relative to the container |
| CV-2x3-161 | 2010 09 01 | Agreement on applicable geometric items to be used for axis representation |
| CV-2x3-162 | 2010 09 01 | Agreement on the valid value range for the angle in revolved area solids |
| CV-2x3-163 | 2010 09 01 | Agreement on the minimum set of default units to be defined within the project context |
| CV-2x3-164 | 2010 09 01 | Agreement on the correct use of shape representation types for elements and its features (openings, projections) |
| CV-2x3-165 | 2010 09 23 | Agreement on how to export the profile name |
| CV-2x3-166 | 2010 09 23 | Agreement to not use the deprecated IfcElectricHeaterType for electrical space heaters [addition 10-04-2013 on always using IfcFlowTerminal as occurrence] |
| CV-2x3-167 | 2011 05 01 | Agreement to assign style to all body shape representations |
| CV-2x3-168 | 2011 09 01 | Agreement to use standard shape representation type names "Axis", "FootPrint" also for IfcStairFlight and IfcRampFlight |
| CV-2x3-169 | 2011 09 01 | Agreement to restrict which independent elements can be contained in a building spatial structure |
| CV-2x3-170 | 2011 10 24 | Requirement to provide a fall-back configuration to export b-rep instead of CSG shape representations |
| CV-2x3-171 | 2011 10 24 | No shape representation identifier shall be used twice within the product representation of an element |
| CV-2x3-172 | 2011 10 24 | Enable multiple mapped items as a shape representation of regular patterns |
| CV-2x3-173 | 2011 10 24 | Aggregates shall have more than one part |
| CV-2x3-174 | 2012 02 01 | Restrictions on the 'Axis' shape representation for IfcWallStandardCase |
| CV-2x3-175 | 2012 09 24 | Agreement that all doors and windows shall have a body shape representation |
| CV-2x3-176 | 2012 12 01 | Agreement on how to use IfcPort / IfcDistributionPort within the IFC2x3 extended coordination view |
| CV-2x3-177 | 2013 01 01 | Agreement for definition of opening geometry either as IfcOpeningElement or as part of a CSG tree. |
| CV-2x3-178 | 2013 07 01 | Agreement on using IfcRelConnectsElements for assigning IfcDoor / IfcWindow to building elements without IfcOpeningElement's. |
| CV-2x3-179 | - | (Unassigned number) |
| CV-2x3-180 | 2013 09 13 | Agreement on Color Priority in the Coordination View |
| CV-2x3-181 | 2013 09 13 | Agreement on use of ParameterTakesPrecedence for doors and windows |
| CV-2x3-182 | 2013 09 13 | Agreement to clarify the export of a Building Storey and its local placement |
| CV-2x3-183 | 2013 09 13 | Agreement to disallow duplication of Property Set Names within a single object or object type |
| CV-4-001 | 2013 09 13 | Agreement on export of explicit plan view geometry of IfcWindow and IfcDoor |
| CV-4-002 | 2013 09 13 | Agreement on use of Local Relative Placement |
| CV-4-003 | 2013 09 13 | Agreement on use of Local Relative Placement for profiles definitions |
| CV-4-004 | 2014 03 14 | Agreement on use of naming for Objects versus Object Types |
| CV-4-005 | 2014 03 14 | Agreement for the usage of MaterialLayerSetUsage for Elements without StandardCase definitions (proposed - in progress) |
| CV-4-006 | 2014 03 14 | Agreement for the use of MaterialLayerSetUsage for Quantity Take-off (proposed - in progress) |