A Certificate of Service is a legal document that verifies that a person has provided a service to another party. This document serves to confirm that the service was performed in a timely manner, with accuracy, and with the expected results. There are typically two types of Certificates of Service: one for an organization or institution, and one for an individual. A Certificate of Service for an organization or institution is issued to a company or other entity that has hired a service provider to complete a particular task. This document confirms that the service provider has completed the work as requested, and that the company or entity has been satisfied with the results. A Certificate of Service for an individual is issued to the service provider who has completed a task for a company or other entity. This document provides proof that the service provider has met the requirements of the job and has done so in a satisfactory manner. It also serves to verify that the service provider has been paid for their service.