Before you accept an exchange 20# propane bottle

Clay L there is only one place they are allowed to stamp on the bottles we use on RVs and no where else on the bottle. I read up on this and also found that with one pressure type test instead of visual it can go another 12 years. The bottles when tested properly require a stamped letter for type inspection and new date stamped below the manufacture date. I talked to a couple of the LP places around here and they will not fill out dated bottles and not all are certified to do the inspections.