First I would like to pass on my condolences at the passing of Frank Spence April 26th, 2012.
I'm a newb, this week I will pick up my new-to-me MH from the States. And, if I understand correctly, what we have are two different propane filling issues on two different types of propane containers in two time frames:
Pre Mid-1998 (Triangular valve) and Post 1998 (Round Valve)
"Tanks" are the horizontally mounted permanent type affixed to the frame of a MH.
"Cylinders" are the vertical portable kind found connected to BBQs.
And the two issues are recertification and the propane dispenser's lack of understanding of the facts.
I'm Canadian so some of you may tune out but I did some digging. ASME or horizontal, permanently affixed propane tanks older than mid-1998 are indeed exempt from valve replacement AND recertification IF they bear a CRN number.
In Canada, the CSA has admitted that they did a piss-poor job of writing the standard and are reconvening this year to clear things up because of all the confusion at the pump. The TSSA, who disseminates and manages the standards set by the CSA has been less than helpful. Propane suppliers (stations) are just trying to follow the rules and the confusion stems from cylinders vs tanks, age and valve type.
I don't know what the sticker in the USA looks like but in Canada, Propane Filling Station attendants are looking for a diamond shaped green and white sticker affixed to the inside of a window nearest the propane tank on a HM. (Can anyone post an image of this sticker?)
I assume that sticker will will have some date holes punched out of it.
So, what I am going to do is get the MH vender to have the tank recertified before I take delivery of my MH. Then, when I get back across the border (I'm told this issue does not impact importation) I am going to get a propane conversion center to issue me said sticker.
End of problem. I will have a Certificate and a sticker. If my local dispenser still has a problem, I will use these tools to help the manager/owner learn. Total cost to me? <$50.00