No sale or delivery of petroleum products shall be made from a tank, wagon, motor vehicle or delivery truck unless the driver in charge of the vehicle shall deliver to the person receiving such product an invoice that:(1) Shows the number of gallons of the product;(2) Has plainly written or stamped thereon the words 'guaranteed legal standard'; and(3) States that the inspection fee payable with respect to such petroleum product has been paid.
Alabama Legal Code
Section 8-17-90 - Driver of Delivery Vehicle to Deliver Invoice
Source: https://alison.legislature.state.al.us/code-of-alabama?section=8-17-90· Version 2026