Placarding conflict

I swear I had to placard each compartment when I hauled chemicals. I could be wrong though

 

Every compartment needs its own placard for what’s on board

 

Why is it different for fuel?

 

I haul aviation fuel, either AVgas or Jet.
You can not mix loads. You cannot have a couple compartments with AvGas and a couple loaded with Jet.
Trailers are dedicated so only the appropriate placard is used, like 1863 for Jet.
Automotive fuels can be mixed and only requires it’s appropriate placard

 

That's a chemical requirement. For some reason, fuel haulers only need to placard each side, not each compartment.

 

last 4 compartment tank I pulled had 32 placards on it. No one wanted to park nearby.

 

That sounds like a positive!

Well, except for hand cramps you'll get when it's time to change the UN numbers.

 

Ah, peace & quiet..........

 

Makes sense. Even putting DEF in diesel tank the only risk to life/limb is the boss. But a plane if wrong fuel . I assume engine might not function? Depending on mix people could die. Local truck island in my area had gasoline dumped into one diesel tank underground. It took over 8 months for them to dilute it to legal to sell ratios. *I did not buy diesel there during that time.*. I don’t think I have bought fuel there since. There is a percentage of E10 they can mix with road diesel without telling you. I doubt 30 people knew about it. Over an decade ago.