Well, it did not take long

They have over a million units in operation. It may be a matter of mass data storage cost. But yes, they store 6 months of logs, but much longer for miles (IFTA.) Also, as ZVar says, since the law requires no more than 6 months many companies want it to only store that.

Luckily it takes 30 seconds for the company to save them to PDF format forever if they want. It's their choice. I also know many owner-ops who have a standing order with their carrier to email them every month all of their logs for their own personal records.

 

This is what it looks like when you get busted for editing ELD. The company from my OP runs all legal now lol

 

Hope he has a fresh Dot number laying around. I see a audit in the future.