this website which is free. Just print out the certificate you get upon completion and turn that in along with your application. Oregon recognizes no out-of-state concealed handgun licenses, a few states recognize ours. The wait depends on the county. It took 28 days to get one in Benton County.
Some other info you might want to know that you didn't ask. You have to get fingerprinted. I think the cost of fingerprinting is included in the cost of the CHL application. You also have to show proof of residency, so a lease or maybe a utility bill or something is required.