ISO/TS 10303-1008:2014-02 specifies the application module for
Layer assignment.

The following are within the scope of
ISO/TS 10303-1008:2014-02:

• assignment of representation items to layers;
• identification of layers;
• items within the scope of application module Foundation representation, ISO/TS 10303-1006;
• items within the scope of application module Group, ISO/TS 10303-1113.