16 C.F.R. § 309.11
(a) For non-liquid alternative vehicle fuel (other than electricity), in each transfer you make to anyone who is not a consumer, you must certify the fuel rating of the non-liquid alternative vehicle fuel (other than electricity) consistent with your determination. You can do this in either of two ways:
(1) Include a delivery ticket or other paper with each transfer of non-liquid alternative vehicle fuel (other than electricity). It may be an invoice, bill of lading, bill of sale, terminal ticket, delivery ticket, or any other written proof of transfer. It must contain at least these four items:
(b) For electric vehicle fuel dispensing systems, in each transfer you make to anyone who is not a consumer, you must certify the fuel rating of the electric vehicle fuel dispensing system consistent with your determination. You can do this in either of two ways:
(1) Include a delivery ticket or other paper with each transfer of an electric vehicle fuel dispensing system. It may be an invoice, bill of lading, bill of sale, delivery ticket, or any other written proof of transfer. It must contain at least these five items: