I've been using good 'ol Blitz cans (metal) for over thirty years. With a fresh o-ring every ten years or so, I've never had an issue.
Care to provide a regulatory citation for that one? I would be interested to see where it comes from.Here in California in the BLM and NF, it is a $300 fine per can (if it has gasoline in it) if it is not CARB approved. The old steel cans are a no no. Most plastic cans do not have the CARB cert as well. I carry Rotopax now. At first, I did not like them simply because I "had to comply". Now I have found the mounts useful for a variety of uses. Long trips or when gas is hard to get, I carry two 3gl cans, on easier day or weekend trips, I carry one 2gl gas and one 2gl distilled water. I also have extended mounts to carry two 2gl on the same mount if needed. Rotopax makes a first aid kit and tool kit in the same profile as the 2gl cans. Very versatile. They have two downsides, 1) gotta do it in Ca. 2) pricey $$
Interestingly enough, BLM, USFS, among other Govt. Land agencies are not allowed carrying plastic fuel contaniers either.
Btw, not 100% correct, they allow plastic Dolmar style fuel cans. But I suspect its due to their low capacity and maybe a restriction of how many may be carried per vehicle.
I believe so. But I have also heard that the CARB cert has something to do with permeation. If I understand the CARB law, if you have a "non-CARB" can with just a cap and no nozzle, it is legal. If you have a nozzle in a non carb can, it is not.If you carried CARB-compliant nozzles with you to show the officers, then your fuel carrying system would be CARB-compliant, wouldn't it?