“The entire supply chain has to move to environmental compliance synchronously - or at least nearly at the same time. Otherwise, manufacturing processes and the logistics of moving parts don’t mesh and end products don’t make it out the door either in full compliance or working order. That has forced some OEMs and board manufacturers to ask component suppliers to slow down the progression to RoHS compliance, at least for the time being. The delay puts a drag on the entire process, in some cases delaying compliance for suppliers and in other cases forcing them to develop and manage dual product lines of compliant and non-compliant parts.” Source: electronicsweekly.com