Final answer:
The NYS law that establishes certification requirements for EMS providers is the Public Health Law, which regulates the training and scope of practice for EMTs and paramedics, ensuring they are properly trained to manage emergencies.
Step-by-step explanation:
The law in New York State that establishes the certification requirement for Emergency Medical Services (EMS) providers to perform legally at their level of training is the d) Public Health Law. This law ensures that EMS providers such as EMTs and paramedics are adequately trained and certified to handle medical emergencies. Training spans from basic care to administering a wide variety of emergency drugs, along with decision-making, teamwork, communication, and stress management skills. In particular, paramedics receive extensive training, often involving 2-4 years of education and experience as an EMT. Additionally, the state's power extends to licensing professionals to safeguard public wellness and safety.