A Certificate of Service is a document issued by an employer to certify that an employee has completed a certain period of employment. It is commonly used in cases of termination, resignation, retirement, or other changes in employment status. There are two types of Certificate of Service: a General Certificate of Service and a Specific Certificate of Service. A General Certificate of Service is a document issued by an employer to certify that an employee has completed a certain period of employment. It is usually issued upon completion of the term of service or upon termination. The General Certificate of Service includes information such as the name of the employee, the period of service, the job title, the rate of pay, and the signature of the employer. A Specific Certificate of Service is a document issued by an employer to certify that an employee has completed a specific task or project. It is usually issued upon completion of the task or project. The Specific Certificate of Service includes information such as the name of the employee, the task or project completed, the date of completion, and the signature of the employer.