Are RoHS compatible PCBs also halogen-free?

FAQ about printed circuit boardsRoHS

No, not necessarily. The RoHS directive prohibits two bromided flame retardants, PBB (polybromided biphenyls) and PBDE (polybromided diphenyl ethers). What is normally used in PCBs is a bromided flame retardant called TBBP-A (Tetrabromobisphenol A).