If you are aged 14-17 you will need an employment certificate, also called working papers, in order to hold a job in New York State. In completing this form employees will be acknowledging in writing that their second job is subordinate to their employment with Nassau County.Generally, employees have up to 90 days to establish City residence if they are residing outside of the City at the time of appointment. If more than one title at same employer, list as separate employment. 2. Nassau Works provides services to individuals with disabilities and other barriers to employment to obtain and maintain employment. Mount Sinai South Nassau located in Oceanside, NY, provides a wide variety of medical care, excelling in cancer care, cardiac and orthopedic services. Welcome,. It is my pleasure to welcome you to the New York State Unified Court. System. This handbook will help you understand your role in the courts.