Which organization is responsible for setting regulations and policies for emergency medical services?

The National Highway Traffic Safety Administration (NHTSA) is the organization that is primarily responsible for setting regulations and policies for emergency medical services (EMS) in the United States. NHTSA plays a critical role in developing standards, providing guidance, and ensuring that EMS systems operate effectively and safely. This includes establishing the National EMS Education Standards and promoting best practices to improve the quality of care delivered by EMS providers.

While organizations like the American Red Cross, CDC, and WHO engage in important health-related activities, their focus differs. The American Red Cross primarily focuses on disaster relief and education in first aid and CPR. The CDC is involved in public health and disease prevention but does not directly regulate EMS. The World Health Organization is a global health agency that addresses health issues worldwide, which does not involve regulatory oversight of EMS services in specific countries. Thus, NHTSA's dedicated focus and efforts in the realm of emergency medical services make it the correct choice for this question.