Does Article 9 cover maintenance to mechanical systems in a building? Please refer to Article 19 of the General Conditions of your contract for details of the applicable insurance requirements.The completed typewritten form must be filled out correctly prior to emailing your request. Incorrectly filled forms will be rejected. The first step is to have the contractor complete Form W9, Request for Taxpayer Identification Number and Certification. The W9 should be kept in your files for four years for future reference in case of any questions from the worker or the IRS. If you have any questions on completing these forms or need to obtain copies of these forms, please call (518) 320-3210. Notice of Non-Payment of Holdback. You must complete Form I9 each time you hire any person to perform labor or services in the United States in return for wages or other remuneration. Form (Form 8)4 is required to be published in a construction trade newspaper.