An employment verification letter, or proof of employment, indicates that you are a New York State employee and in some cases states your salary. Learn about employment verification letters and how to request one, including samples and free templates.For City employees please call the DCAS Employment Verification line at 212-669-1357, option 7, then 1. New York requires employers to provide a termination letter to employees within 5 days working days of their termination date. Need to provide proof of employment status? Use this sample employment verification letter to create your own. What Information is Provided? This article explains everything about employment verification letter meaning, how to get it, tips, email template and more. Details about your employment for the last 18 months: • Employer names, addresses, and phone numbers (including out-of-state employers). During your first few days on the job, you will be presented with numerous employment forms, some of which you may take and complete at your convenience.