As reported in our November 2006 EHS Bulletin, Environment Canada has proposed new PCB (polychlorinated biphenyl) regulations that, among other things, would generally prohibit the use of equipment containing PCBs in concentrations of 500 mg/kg or more by December 31, 2009. After reviewing comments on its proposal, Environment Canada has now published changes to the draft regulations that would allow regulated parties to request an extension to the December 31, 2009 deadline if the PCB-containing equipment (i) is being replaced with engineered-to-order equipment that is technically infeasible to install before the deadline, or (ii) is located at a facility scheduled for permanent closure on or before December 31, 2014. For more information, please see  www.ec.gc.ca/ceparegistry/documents/part/wmd-dgd/pro-ext.cfm.