(a) A vehicle that is ordinarily or primarily used for the transportation of waste oil shall bear a sign that meets the following:

1. (1) The sign shall include the name and business address of the waste oil transporter that owns the vehicle.
2. (2) The sign shall have lettering that is 6 inches in height. The required information shall be clearly visible and easily readable.

(b) Transportation vehicles may be labeled or marked with the words “used oil,” instead of “waste oil,” or the words required by a receiving state if the vehicles are destined for recycling or disposal outside of this Commonwealth. If a person accepts waste oil from or delivers waste oil to a generator, transfer facility, or processor/rerefiner in this Commonwealth in a transportation vehicle, the following shall be met:

1. (1) Except as provided in paragraph (2), the transportation vehicle shall be labeled or marked clearly with the words “waste oil” by no later than December 2, 2001.
2. (2) Transportation vehicles that are marked or labeled “used oil” on December 2, 2001, shall be marked or labeled with the words “waste oil” by no later than June 2, 2003.