Iowa Code Title III. Public Services and Regulation [Chs. 80-122C] § 101.11. Use in vehicle--marking--dispensing prohibition--penalty

1. A vehicle which carries liquefied petroleum gas fuel or natural gas, as a fuel source for the vehicle, in a concealed area, including but not limited to trunks or compartments located in or under the vehicle, shall display on the left rear and right front bumpers of the vehicle a standard abbreviation or symbol, approved by the department of public safety, which indicates liquefied petroleum gas fuel or natural gas is a fuel source for the vehicle.

2. The owner of the vehicle which is fueled by natural gas or liquefied petroleum gas shall be responsible for the placement of the approved abbreviation or symbol on the vehicle.

3. A person shall not dispense liquefied petroleum gas fuel or natural gas into a tank in a concealed area of a vehicle unless the vehicle complies with subsection 1.

4. A person who violates this section is guilty of a simple misdemeanor.