Often times, trees in your business parking lot will need to be pruned to accomodate cars. Typically, this is done to a height of 8 - 13 feet and should not exceed 30% of the overall height of the tree, per ANSI A300 Standards.
If your tree is tall enough, you may want to have your arborist prune high branches that may obstruct the clearance of large vehicles. Don't forget that those professions that use those larger vehicles will need ample clearance for parking.
If you have further questions please feel free to contact one of our arborist for a consultation.