Straight talk
You can do this yourself
The regulation is public, and plenty of one-truck operators keep their own files just fine. Here is what it takes: pulling driving records from every state of licensure, chasing prior employers who have 30 days to ignore you, verifying the medical examiner on the National Registry, and a calendar that never misses a date across every driver you have.
There is also software for about $5 a driver a month. It stores what you upload and tells you when a date is near. It does not read the record, write to the employer, check the examiner, or know whether the application is missing a field. You do.
If you would rather drive than do that, that is what I am for.