DOT/OSHA requires a spring loaded seal on cans. Plastic or steel are OK. What's not are the old traditional Jerry cans with a screw on cap. While no one will pull you over for a non safety lid it's good to know!
Years ago I had questions about the cans we carried on our wildland fire engines and found two experts who 'knew the answers to what was 'legal'. One was a military haz mat guy who said "we're the military, we don't have the same rules....except that metal cans were no longer used on aircraft.
The other was the CHP in charge of haz mat. Her was a Jeeper who carried Jerry cans on the back of his rig. The old fashioned ones with the screw on caps. Hr dug into the regs and was surprised to find that he was in violation of the rules.
But, the old saying holds true..."if we want you, we can find something to get you on..."
Years ago I had questions about the cans we carried on our wildland fire engines and found two experts who 'knew the answers to what was 'legal'. One was a military haz mat guy who said "we're the military, we don't have the same rules....except that metal cans were no longer used on aircraft.
The other was the CHP in charge of haz mat. Her was a Jeeper who carried Jerry cans on the back of his rig. The old fashioned ones with the screw on caps. Hr dug into the regs and was surprised to find that he was in violation of the rules.
But, the old saying holds true..."if we want you, we can find something to get you on..."