Is workers' comp mandatory in NY?

Excuse me, I'm curious about the regulations in New York regarding workers' compensation. Is it a requirement for all employers in the state to provide workers' compensation insurance to their employees? I understand that this insurance covers medical expenses and lost wages for employees who suffer from work-related injuries or illnesses, but I'm not entirely sure if it's mandatory or not. Could you please clarify this for me? Thank you in advance for your time and assistance.