Is the customs released time supplied by a brokers PAPS/PARS Checker (in this case Livingston) a fairly good indicator of when the trailer crossed the border?
-In my experience, usually yes.
I have a carrier claiming that they were in Ringgold, GA Yesterday AM, but the PAPS checker shows "Customs Released: 11/17/2014 06:35PM".
So, it cleared last night into the US but was in GA in the morning? Unless there is some computer issues (which can happen). Either way, check the series of times: Paperwork received, submitted to customs, arrival to border, etc... May paint a more clear picture for you.
Most importantly - I hope your freight delivers as close to when it's supposed to as possible. Remember this time of year (now until April) we need to account for that silly white stuff that slows down all traffic. I prefer a carrier to park my load on the side of the road than to push a driver in unsafe conditions. Safety always first!
Keep well,
Mike