Waste Management Inc. said that about 650 employees took a voluntary separation package resulting from its restructuring plan announced earlier this year, but the company doesn’t anticipate that all those positions will be permanently eliminated.

The Houston-based Waste Management said in a filing with the Securities and Exchange Commission that voluntary separation was offered to all salaried employees within the several corporate functions that the company identified for consolidation and realignment.

Waste Management undertook the restructuring, announced in August, “to better support achievement of the company’s strategic goals, including cost reduction.” Waste Management expects to complete the restructuring by the end of the year.

The restructuring including the recycling and organic operations, which led to the president of WM Recycle America LLC and WM Organic Growth Inc., William Caesar, to leave the company. In October he joined WCA Waste Corp. as its new CEO.