[vectorit]

It means that your rig was totalled by an insurance company, thus the state took it off the books.
Then at some point someone fixed it up, then got it approved to be reregistered.
It's a very common practice. I know guys that buy wrecked cars/trucks/MC's from wrecking yards, then fix them up and sell them for a profit.
You have to be very carefull buying a salvage, since you don't know the extent of the write off. I have seen very simple damage write off a vehicle, since the cost would be prohibitive for the insurance company to fix. But turns into a gold mine for a wrecker, since they put it together with their own stock.
I have also seen some nasty wrecks get "fixed", only to sold as an unsafe vehicle.
So... If you are interested in a salvage titled vehicle, make sure you get it inspected by a shop that does not know the seller. This could cost you a bit of cash, so it's only a deal if it's being sold very cheap.
Also, most insurance companies will not insure a salvaged vehicle! The ones that will, will only do so for a really high premium.
Finally, lets say you get a great deal then get tired of the ride and want to sell it. You will find out quick that most people will walk away from a salvage titled ride, and you will be either forced to keep it or sell it at a loss.
It's all about buyer beware... Personally, I would walk away. Since I have been down this road once, and I would never do it again. BIG PIA!!