Each transport vehicle that contains a poisonous material subject to the PIH or Poison Inhalation Hazard must be placarded with the Poison Inhalation Hazard placard.

The best way to identify a Poison Inhalation Hazard placard is by looking at the upper point of the placard. It shall have a skull and cross bone symbol. The placard itself must be white and the symbol also is white. The upper diamond around the symbol must be black. The text inhalation hazard and class 2 must be black in color.

Also remember that no matter which placard is displayed, the placard must be clearly visible. point on point.

Poison inhalation hazard or PIH is extremely dangerous and if handled incorrectly, could be life threatening.