[SEL] What are the tank requirements at Portland?

[Curt]

A local engine fellow is considering bringing his 22 1/2HP Bessemer  for 
his annual trek to Portland this year. He has displayed plenty of 
engines in the past, but this would be his first time displaying an oil 
field engine.
The engine is nicely restored and was in GEM a few years ago. But he has 
a question about the LP tanks. He is using the 100# tank and is 
wondering about the show's requirements to hold the tanks in the 
vertical position. Are there speciific rules at Portland regarding 
strapping the tank to something on the engine to assure it can't be 
knocked over? Or is free standing OK?
If strapping is required, is it sufficient to put up a fence post and 
strap the tank to it?
Thanks,
Curt Holland (for Clayton Ballard)

cc: Clayton Ballard  cpballard1 at bellsouth.net