New Jersey Statutes Title 51. Standards, Weights, Measures and Containers 51 § 10-6

Each delivery of liquefied petroleum gas sold on a package basis in cylinders or containers to consumers and each delivery of such gas from a vehicle tank or other vessel into tanks, cylinders or containers connected to consumer apparatus when sale is based on a quantity so delivered, shall be accompanied by a delivery ticket and duplicate thereof. On such ticket and duplicate thereof shall be distinctly expressed in ink or other indelible substance the date of delivery, the net weight or volume of such liquefied petroleum gas delivered together with the name and address of the seller and the name and address of the purchaser of such liquefied petroleum gas. Delivery tickets shall be serially numbered or the serial number of the cylinder or container shall be legibly marked on such delivery ticket. One of such tickets shall be delivered to the person receiving the liquefied petroleum gas, and the other ticket shall be retained by the seller of the liquefied petroleum gas for a period of one year and shall be subject to inspection by any weights and measures officer, within this time.