What regulatory guidelines apply to Oxygen (CAS: 32767-18-3)?

Oxygen (CAS: 32767-18-3) is classified as a non-flammable gas under the Globally Harmonized System of Classification and Labelling of Chemicals (GHS). It is regulated under the European Union's Registration, Evaluation, Authorisation and Restriction of Chemicals (REACH) framework. In the United States, the Environmental Protection Agency (EPA) and the Food and Drug Administration (FDA) may also have specific guidelines for its use and handling in industrial and medical applications.