What regulatory guidelines apply to Dibutyl butylphosphonate (CAS: 78-46-6)?

Dibutyl butylphosphonate (CAS: 78-46-6) is regulated under the GHS classification as a flammable liquid. It is also subject to the REACH regulations in the EU, requiring companies to register substances with a threshold of 1 tonne per year. In the USA, it is under EPA and FDA regulations for industrial and consumer use. Proper labeling and safety data sheets (SDS) are essential for handling and storage.