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Q&A: Displaying the DANGEROUS Placard on a Motor Vehicle

Q&A: Displaying the DANGEROUS Placard on a Motor Vehicle

Question from previously unknown contact on April 2, 2015 through the Contact Me page of my website:
Hazard Class 3 Flammable Liquid Placard

Placard on Cargo Tank Motor Vehicle for UN1866 Resin Solutions

Good morning, to my understanding I’ve known that we need placards on flammable over 1000 lb.  But when we have 324lb. of 4.1 Flammable and 525 lb. of UN1866, resin solution.  Is it ok to use Dangerous only or both placards? Tks!

My reply later that same day:
Dangerous Placard

The Dangerous Placard can be used in a variety of situations – with limitations – when transporting HazMat

Thank you for contacting me.  I will try to answer your question below:

  • You are correct that vehicles transporting quantities of most HazMat, including Class 3 Flammable Liquids, of ≥1,001 lbs must display HazMat Placards on all four sides of the vehicle.
  • The amount of HazMat you describe is not enough to require placards to be displayed on the vehicle (324 lbs + 525 lbs = 849 lbs).  Though the driver may display placards in this instance if he wishes to.  Please read this article:  Driver Option to Display Placards When not Required.
  • If displaying placards at the driver’s discretion or if there is enough HazMat to require placarding the vehicle (e.g. 501 lbs of Division 4.1 Flammable Solid and 500 lbs of Class 3 Flammable Liquid) the driver has two options:  1.  Display the distinct placards for the separate HazMat (4.1 Flammable Solid & 3 Flammable Liquid) or; 2.  Display the Dangerous placard alone.  Please read this article:  Use of the Dangerous Placard for Shipments of HazMat.
Hazard Class 3 Flammable Liquid Placard

The display of the Class 3 Flammable Liquid placard is required for certain shipments of HazMat

Also, for general information about acceptable display of placards, please see this article:  What’s Wrong With These Pictures? Incorrect Display of Placards.

I hope this helps.
Please don’t hesitate to contact me with any other questions or if you require HazMat Employee Training (including Driver Training).
Dan
Another satisfied HazMat Shipper(April 2, 2015):
Thank you very much Daniel..
Please let me know if you have any questions about the transportation of hazardous materials; I’m here to help.

Contact me with any questions you may have about the transportation of hazardous materials by air, highway, vessel, or rail

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