What is the difference between a Certificate of Destruction and a Salvaged Title?

A Certificate of Destruction is when the a salvage yard has sent a car to the crusher and before it is crushed he must have the Vehicle ID number check to make sure he has title to destroy the car for scrap metal. Salvaged Title is when a Insurance Title company has deemed a car damaged in a accident i.e. crash,natural diaster,stolen stripped, to repair this car exceeds the cost of the car. So the Insurance company pays-off the owner of the car then sells the car to salvage yard but they put a Salvage Title on the Vin as to make sure if this vehicle is return back in to service the new owner knows that it was deemed totalled. Also so the insurance companies will know if it ever is asked to be insured again they will insure at a lower replacement cost.