Propane tank recertification

lakeside013104 wrote:

Kayteg1 wrote:
I ask propane seller in Las Vegas and they directed me to American Gas for re-certification.
The horizontal cylinders with gauge I have sell for about $300 new, so recert is worth it, even doing it last time in California, I paid $25 if not more.

To my understanding, most upright tanks are under DOT regulations and have an expiration date on them, usually every 10 years before re-certification is required.

Horizontal tanks are regulated under ASME guidelines and normally have no certification expiration date.

I believe the difference goes back to how the tank was manufactured, meaning DOT require less 'thickness' of the tank metal while ASME tanks are built with thicker metal, thus fall under different guidelines.

Someone with more experience than I will chime in, so stand by for more information.

Lakeside

you are mixing terms . If you have ASME TANKS it will say that on the label , usually they are permanently mounted . Most campers will have DOT CYLINDERS , BE they vertical or horizontal and have to be recertified . The weight of an ASME tank is more than twice that of a DOT cylinder of the same size .