https://propanedepot.ca/products/marinepropane/ (see image of set up on website)
Hi. sorry I took so long to reply
This place just outside Vancouver gave me the info for a marine propane set up, that I believe complies with the standards.
2 stage regulator
gauge to monitor if any loss of fuel while stored
solenoid
all hose fittings are not to be clamped but, a proper gas fitting ( I thought I was going to be able to use some of my existing fuel lines but they were of clamped variety.
any hoses that travel through boat to your galley and pass through bulkheads must be sealed fitting
fortunately I found an alcohol stove that is perfect for my needs
Glenn