Naming Standards

What is a good convention for tracking actual standards in the data model? For instance, we are tracking a customers "standard" codes and descriptions of results as well as industry standard codes and results. This potentially could get deeper if there is a "standard" code and description between the customer and the industry.

I was considering two tables (one for the primary standard and one for the alternate standard(s)). If the alternate had several standards, then a priority column to track usage and a description column to track which alternate standard (ie customer, regional, etc).