What it means
Exempt means the seller does not have to certify the mileage. Under US federal rules, model year 2010 and older cars are exempt, while 2011 and newer need disclosure until they are 20 years old; heavy vehicles over 16,000 lb are exempt too. The reading may be correct, but nobody vouches for it.
What it means for a buyer
Treat the mileage as unverified. Check earlier sales of the VIN and service records if you can get them.
Cars in our database with this value right now: 69,580