EPA released a problem formulation for the Cyclic Aliphatic Bromides used as a flame retardant in extruded and expanded polystyrene foams (EPS/XPS), polystyrene (PS) products. The goal of this problem formulation was to identify scenarios where further risk analysis may be necessary. The conclusion of this problem formulation is that EPA will assess risks to workers, consumers, the general population and aquatic, terrestrial and avian wildlife exposed as a result of manufacture, processing and use of HBCD.

• TSCA Work Plan Chemical Problem Formulation and Initial Assessment Cyclic Aliphatic Bromides Cluster Flame Retardants (PDF)(97 pp, 1 MB, August, 2015)