Placarded Tanker Used Empty Lane at Weigh Station

As a gas hauler, I'm required to keep placards on when I have any amount, including residue, on board per hazmat regs.
If I'm empty, I use the empty side of the station... Loaded, even if it's a single tank, I use the loaded lane.
Given that I don't wash out, my placards remain in place at all times.
No wash out necessary because I haul fuels only... Load, deliver, repeat until my clock runs out.

 

Too much overthinking. He is empty with residue. That’s all. No more, no less.

 

I drive through empty lane if I'm empty, 4 or 6 times a day, for 5 years already...never been pulled in because of it. Fuel tanker in SoCal.

 

One way to think of it is like a glass of water. When the water is gone, there is still moisture in The glass, but the glass is still empty.

 

These are the correct answers.

 

As far as doing a tankwash being the only way to remove the placards - can you not empty a load of UN1993, then load biodiesel and remove the placards?

 

I'm a fuel hauler too. Last year alone, I was inspected 8 times. Nearly every time, the officer asks "are you loaded or just have residue?" If I'm running 1993/1202 placards. When running 1203 placards, they ask "are you loaded or are you retaining vapor?".

Anytime you deliver gasoline and correctly use your vapor recovery hose, then you are simply unloading liquid and loading vapors back into the tanker simultaneously. We have to have these trailers inspected annually to make sure they pass a vapor test (air tight). The vapor rides back to the loading rack and is pushed out into a vapor recovery system during loading.

Diesel always leaves behind a residue that requires a placard until a washout. Per federal law....if an unwashed trailer sits unused for a year (example)...it still has to have placards and BoL for the last product hauled whenever it's used again.