Quote Originally Posted by Basic View Post
Upon rereading your question, I think I misread it originally. May I ask you to clarify what you mean by ratings?
When you are looking at commercial truck tires, there are published rolling resistance ratings you can look up for most tires. I don't know the specific rating system used, but there's a number value associated with each tire. This gives you the ability to directly compare the rolling resistance of different truck tires. I can't seem to find any examples at the moment, but I hear commercial drivers mention them.

It's similar to the European Tire Label rating that foama mentioned.