It's probably more than 12 per week (they have vacation time). So, if they have to perform 3 inspections per day (approx) and they can squeak through an inspection of a 'newer' tractor-trailer in say, what, 45 minutes (wild guess)? We'd have to assume the other 5+ hours a day is administrative duties, right?
I'll just eat my lunch at my desk again today because our customers expect results while these guys target 'easy inspections'.
Back to it, the workload never stops.
Mike