Why do waste haulers consider their shipments a form of commerce?

Waste haulers consider their shipments a form of commerce because they are employing people and plant to provide a service at a price. They are no different from any other hauler. 
The distinction between the in-state and out-of-state wastes are likely to be challenged under the Commerce Clause.

The electoral college consists of 538 electors. a majority of 270 electoral votes is required to elect  the president. your state's entitled allotment of electors equals the number of members in its congressional delegation: one for each member in the house of representatives plus two for yoursenators.congress does the electoral college represent