[CAD Note] 

AEC (UK) BIM Protocol
Implementing UK BIM Standards for the Architectural, Engineering and Construction industry.

Version 2.0 September 2012

Updated to unify protocols outlined in AEC (UK) BIM Standard for Revit and Bentley Building. 

https://aecuk.files.wordpress.com/2012/09/aecukbimprotocol-v2-0.pdf
https://aecuk.wordpress.com/