BIM/IPD [AUS]
RAIA BIM documents.
http://bim.architecture.com.au/
NATSPEC BIM PORTAL
Australian BIM Guidelines.
USACE BIM WEB SITE
US Army Corps of Engineers.
https://cadbim.usace.army.mil/
The PennState University "Project Execution Planning Guide"
Also known as CIC guide.
National BIM Standard-United States
BuildingSMART initiative. Section 5 is most useful.
https://www.nationalbimstandard.org/nbims-us
LOD blog post - What is this thing called LOD?
LOD Specification - 2013 BIMFORUM LOD specification