There are two points of view here. One is that when TSA says HAZMAT TSA is referring to things that are commonly known as that substance and that substance is clearly identifiable as such due to the container it is in. The other is and what I gather from the posts on here is that some of you believe everything that is liquid and is not allowed in checkpoint should be considered hazmat and that is not the case. It is true the TSA may not know what is in the bottle and we are not allowed to verify it but the fact of the matter is that if it was hazmat, it wouldnt be over the limit that has to be treated as such, regardless of what the other poster said. I get his point, if you have 60 one liter containers of class 8 then you have to treat it as a hazmat, but a roller barrel of shampoos, toothpaste, water, pop, beer, wine, rubbing alcohol, mouthwash, in their totality doesnt constitute hazmat. Add to the fact that you should not want it to because the cost of disposal would be out of sight and it would be passed on to the traveler.