What organization registers all types of disinfectants in the US?

The Environmental Protection Agency (EPA) is the organization responsible for registering all types of disinfectants in the United States. The EPA's role involves regulating the use of chemicals, including disinfectants, to ensure they are safe and effective for public use. Disinfectants need to be evaluated in terms of their efficacy, safety to human health and the environment, and must meet specific guidelines before they can be marketed and used.

In contrast, the FDA focuses primarily on food, drugs, and medical devices, while the CDC is mainly concerned with public health and disease prevention, and OSHA's focus is on workplace safety and health regulations. Thus, the EPA is uniquely positioned to oversee the registration of disinfectants, making it the correct answer in this context.