Not actual
NOT ACTUAL is just that: The reading is not accurate or could not be ascertained. This may be due to a variety of reasons — the odometer might have been repaired or the vehicle in question might have been stolen, among others. 

Exempt
Some odometers, meanwhile, may be marked EXEMPT, meaning no code is required by federal law. Remember that as a registered member of A Better Bid™, you are able to order inspections of vehicles.

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