In the US, national workplace safety regulations are the responsibility of the Occupational Safety and Health Administration (OSHA), within the Department of Labor
In Canada, national workplace safety regulations are the responsibility of the Ministry of Labour, but national responsibilities are very limited in scope and most responsibilities reside at the Provincial level.
In the UK, national workplace safety regulations are the responsibility of the Health and Safety Executive (HSE)
Most countries place this responsibility within their Ministries of Labor or Health.
As of October 2013, there is no one body or agency that is responsible for food safety in China. While there are food safety regulations in place, there are around ten different national government departments that implement these regulations.
OSHA, the Occupational Safety and Health Administration, is responsible for enforcing the regulations that it issues.
OSHA's sister agency is the National Institute for Occupational Safety and Health (NIOSH). While OSHA is responsible for setting and enforcing workplace safety regulations, NIOSH focuses on research and recommendations to prevent workplace-related injuries and illnesses. Together, they work to ensure safe and healthy working conditions for employees across various industries.
There is no organization called "Occupational Safety and Hazard Administration" Most likely the questioner is thinking of the "Occupational Safety and Health Administration," a US Federal agency in the Department of Labor that is responsible for issuing regulations on health and safety in the workplace and for inspecting workplaces for compliance with those regulations.
The health and safety regulations on mining in the US are issued by the Mine Safety Health Administration (MSHA), and agency of the US Department of Labor..
In the US, the main government agency responsible for food safety is is the Department of Agriculture, which often works closely with the Food and Drug Administration
Occupational Safety and Health Agency (OSHA)
The agency responsible for investigating workplace accidents in the United States is the Occupational Safety and Health Administration (OSHA). OSHA conducts inspections and investigations to ensure compliance with safety regulations and to prevent future incidents. In some cases, state agencies may also have jurisdiction over specific workplace safety matters. Additionally, the National Institute for Occupational Safety and Health (NIOSH) conducts research and provides recommendations for preventing workplace injuries and illnesses.
In the United States the federal agency responsible for safety-related issues of nuclear energy is the NRC (Nuclear Regulatory Commission).
In the UK, the Health and Safety Executive responsible for safety in the workplace. In the US the Occupational Safety and Health Administration, the Mine Safety and Health Administration, the Coast Guard, and the Nuclear Regulatory Commission have responsibilities in this area. In Canada the Provincial Ministries of Health or Labour generally have this responsibility, although certain industries are regulated by the Federal Ministry of Labour.
EASA stands for the European Union Aviation Safety Agency. It is responsible for ensuring safety and environmental protection in civil aviation within Europe. EASA develops regulations, provides certification for aircraft and aviation personnel, and oversees safety standards across member states.
The US Food and Drug Administration (FDA) is responsible for the safety of blood products in the US.