WVC 11 - 14 C- 46
§11-14C-46. Marking requirements for dyed diesel fuel storage
(a) A person who is a retailer of dyed diesel fuel or who
stores dyed diesel fuel for use by that person or another person
shall mark each visible storage tank and each dispensing device
with the phrase "Dyed Diesel Fuel, Nontaxable Use Only, Penalty for
Taxable Use," or a similar phrase that clearly indicates that the
diesel fuel is not to be used to operate a highway vehicle.
(b) The marking requirements of this section shall not apply
to a storage facility that contains fuel used only in a heating,
crop-drying, or manufacturing process, and is installed in a manner
that makes use of the fuel for any other purpose improbable.