ISPM-15.  The requirement for this specificiation is now worldwide for all products that are to be imported or exported on top of a wooden pallet.  DPS is certified to heat treat pallets.  This certification represents that the pallet is "HT" and stamped as such on the pallet.  The purpose of "Heat-Treating" is to kill any bugs that live in the wood and stop them from infesting any part of the world that the pallet may arrive in. The Kiln heat treating process has replaced fumigation to eliminate insects and it does not use dangerous chemicals in the process.