P powderstruck Free Member Jul 17, 2009 #1 was driving through colorado and came across a road sign that was HM with a diagnol line through it. Does anyone know what it means? thanks Last edited: Jul 17, 2009
was driving through colorado and came across a road sign that was HM with a diagnol line through it. Does anyone know what it means? thanks
R RMK SeVeN Active member Jul 17, 2009 #2 Means that the transport of Hazardous Materials is prohibited.
