What is the legality of towing with a 1/2 ton?

It seems to me that a 1/2 ton pickup would not be legal. What confuses me is how do you determine the weight rating when the manufacture does not normally provide 1/2 5th wheel towing capacity?

I am worried people are going to assuming the max towing rating will be enough.

Haha! I would’t do it without the owners manual showing it was allowed. Get a 3/4 ton truck.

—John

I think the Ford F-150 has listed 5th wheel tow rating. 1/2 tons are becoming more and more stout every year. I would consider it.