... For instance tree removal is lumped in with landscaping workers.
This is an old post, but the information is so wrong, I thought I should correct it.
Even "Landscaping" is divided into different worker's compensation classes.
9102 Park NOC. This is the most common classification used for lawn care companies and includes many related functions such as mowing, weeding, grounds maintenance, raking, fertilizing, and limited trimming and planting operations. Generally this class code is best suited for lawn care companies providing routine lawn services.
or
0042 Landscaping is distinguished from lawn care in that many of the tasks related to this class include new landscaping verses the maintenance of existing landscaping. Related work includes laying out grounds and retaining walls, planting, excavation, and sprinkler installation. Applies to employees primarily engaged in planning, clearing, grading, laying of sod, seeding, and planting necessary for landscape installation operations. Planting of trees, shrubs, and flowers are classified to this code along with general gardening activities.
Tree service falls under this category:
0106 Tree pruning, spraying, and repairing is a specialized classification due to potential height exposure and the utilization of specific equipment such as chainsaws and sheers. This class may include pruning, removal, grinding, harvesting, and driving.
or #6217 Tree removal operations-limited number from developed sites-
Logging or timber harvesting is NCCI code 2702.
"Applies to all types of logging and tree removal operations regardless of the size of timber being harvested or removed. Applies to insured that produce wood for grinding pulp for paper production."
There are a LOT of class codes, and it can be difficult to be sure what class you are working in. Consult with this comprehensive list:
https://www.workerscompensationshop.com/workers-compensation-class-codes-alphabetical