Based on the number of coal license plates here in KY, yes, they sure do sniff lines of coal. https://secure2.kentucky.gov/kytc/plates/web/LicensePlate/Index/c

Based on the number of coal license plates here in KY, yes, they sure do sniff lines of coal. https://secure2.kentucky.gov/kytc/plates/web/LicensePlate/Index/c1a92e2e-4843-45d1-88fc-cf2ca26ca621#plateAnchor https://secure2.kentucky.gov/kytc/plates/web/LicensePlate/In... One almost never sees any of the other 11 black license plates. I do expect that to change as the new (black) firefighter license plates replace the old red ones.