I declare under penalty of perjury that the information in this Certificate of Service is true and correct. The following forms are available for downloading, printing and completing.You must produce the documents in the form in which they are ordinarily maintained, or in reasonable usable form, unless otherwise specified in the request. A certificate of service is a legal document filed in court that confirms courts documents were correctly delivered to the other party in a case. Under CPL § 245.50(1) the People are required to "serve upon the defendant and file with the court a certificate of compliance. Certificate of service of discovery document. Service of discovery shall be made in the manner provided for service of documents in Rule 11. Forms and Templates. The Harris County Robert W. Hainsworth Law Library provides you with the links below to assist you in locating forms. Gov website belongs to an official government organization in Massachusetts.