Tubeless?

I know, there are no stupid questions, just stupid people! But I have been running wire wheels for eons and just decided to go 19" mag up front instead of the great looking, but meatless, 21" wire loop. I've been looking at tires and noticed that none of them use the term, "Tubeless", in their ads. Is this because all m/c tires are now automatically tubeless or what's the deal?
Thanks