BIM Standards are extremely important for the adoption of BIM by an internal design team as well as the external consultants they collaborate with.  BIM involves more data sharing than most Architects & Engineers are used to and requires a higher level of communication and coordination.

AEC (UK) BIM Standards

A workable implementation of the AEC (UK) BIM Standard for the Architectural, Engineering and Construction industry in the UK.

Revit Model Content Style Guide

An Autodesk guide to creating your own components