What regulatory guidelines apply to hafnium tetrachloride (CAS: 13499-05-3)?

Hafnium tetrachloride (CAS: 13499-05-3) is regulated under the Globally Harmonized System of Classification and Labelling of Chemicals (GHS) as a hazardous material due to its potential to cause skin and eye irritation. In the European Union, it is subject to REACH regulations, which require registration for substances above 1 tonne per year. Additionally, the U.S. FDA and EPA have specific guidelines for the use and disposal of this compound, emphasizing proper storage and handling to prevent environmental contamination.