Short answer: of course, They're an indispensable structural device for aluminum tanks from a certain size on. Welding World, Inc. is a long-standing member of the American Boat & Yacht Council (ABYC), which is an organization that develops voluntary global safety standards for the design, construction, maintenance, and repair of recreational boats and their components. The term 'voluntary', in the particular case of our marine fuel tank products, is kind of a misnomer because what originated as a voluntary industry standard became the Rule of the Land as the United States Coast Guard liked the ABYC fuel tanks standard so much they decided to make it part of the Code of Federal Regulations. So many of the design and manufacturing criteria applied to our products (as in installing baffles or not) isn’t a matter of choice for us, as it’s, literally, in the US law to have them correctly spec’d and installed. On the other hand, we’re holders of several NMMA type certifications, specifically for our marine tanks, and that takes having a number of copies of our tanks sent to a certification lab to undergo a series of stringent, typically destructive testing, and all of those approvals validate our design and manufacture practices. The National Marine Manufacturers Association (NMMA) is another marine industry trade association that, among other things, maintains industry especific quality-assurance certification programs and for that works in close collaboration with the ABYC. So, as required by law, our commitment as part of the trade associations we belong to, and ultimately, to further our own goal to always fullfil our customer’s quality and dependability expectations, you can have our guarantee that all possible provisions have been taken to assure you get the best built fuel, water, or waste tank from us.