This document is used primarily by independent contractors working on a per-time (or per-push) basis, although other arrangements can be made should the snow removal be required at a frequency that would necessitate monthly invoicing. The invoice template provides room for a description of the services, the price/hour, the number of hours worked and the resulting total charges. Those working on a per-removal basis will be able to ignore the hourly price fields and simply detail the cost in the description.