What regulatory guidelines apply to terbium oxide (CAS: 12036-41-8)?

Terbium oxide (CAS: 12036-41-8) is regulated under the Globally Harmonized System of Classification and Labelling of Chemicals (GHS), which includes hazard communication labels and safety data sheets (SDS). In the European Union, it is subject to the Registration, Evaluation, Authorization and Restriction of Chemicals (REACH) regulation. Additionally, it is regulated by the Food and Drug Administration (FDA) for use in pharmaceuticals and the Environmental Protection Agency (EPA) for environmental protection and health safety.