National CAD Standard
The National CAD Standard is a collaborative effort in the United States between the National Institute of Building Sciences, the American Institute of Architects, and the Construction Specifications Institute, to create a unified approach to the creation and collaboration of building design data by means of building information modeling and integrated into CAD software.
1 article by National CAD Standard:
The AIA, CSI, and NIBS have unveiled the United States National CAD Standard® (NCS) Version 4.0, the first update to the Standard since 2005. Full story