Originally Posted by
rickair7777
In the US, it is essentially always years with the company.
Overseas, many airlines start you at the bottom of the CA scale.
As he said, essentially always Years of service in the US. There are a few companies in the US that you start at year 1 again when you upgrade, but I think you can count all of them on one hand. I believe Ryan is one of them, and I think Commutair did it at one time, though I don't know if they still do.
This site usual lists that information below the payscale, if applicable.