A few states have authorized their retirement systems to transfer participant’s credit to other retirement systems. If the transfers are authorized between retirement systems in the same state, they are called “intrastate reciprocity.” If the transfers are authorized between systems in different states, they are called “interstate reciprocity”. In your case, you will need to check with your current plan administrators whether the interstate reciprocity exist between SC and OK. If so, they should be able to direct you on the things you need to do.