How to tell the difference between at Tree Lopper and an Arborist

https://charlie-wiki.win/index.php?title=The_Main_differences_between_a_tree_lopping_and_an_arborist

One of the most pressing needs following a thunderstorm is to have the branches and leaves of the trees in a compound trimmed. Here a differentiation needs to be produced involving the Arborist and the tree lopper