Cal. Code Regs. tit. 18, § 1470
(b) Specific Applications. In addition to the record keeping requirements set forth in subdivision (a), suppliers, ultimate vendors, retail vendors, and users shall comply with the following requirements.
(1) Supplier's Records. A supplier shall maintain complete records of all rack removals, sales, imports, and exempt dispositions including exemption certificates, self-consumed diesel fuel, inventories, purchases, receipts, and tank gaugings or meter readings, of diesel and any other fuel that is required to be accounted for on the supplier's return or report. Such records include but are not limited to:
(2) Ultimate Vendor's Records. An ultimate vendor shall maintain complete records of all sales, exports, or other dispositions of tax-paid diesel fuel for which a claim for refund is being made, including exemption certificates, self-consumed fuel, inventories, purchases, receipts, and tank gaugings or meter readings, of diesel fuel and any other fuel the use of which is accounted for on the ultimate vendor's claim for refund. Such records may include but are not limited to:
(3) Ultimate Vendor's Sales Invoices. The ultimate vendor shall prepare a serially numbered invoice for each sale of diesel fuel. A single invoice or a single cardlock statement covering multiple deliveries of diesel fuel made during a period of time not to exceed a calendar month shall constitute an invoice for each sale. If the multiple delivery invoice or cardlock statement includes both tax-exempt deliveries with respect to which the ultimate vendor is excused from collecting the tax and deliveries upon which the tax is required to be collected, the invoice or cardlock statement shall contain or be accompanied by a statement showing separately the deliveries and gallonage upon which the tax is collected and the tax-exempt deliveries and gallonage. The invoice or cardlock statement shall be delivered to the purchaser, and a copy thereof shall be retained by the ultimate vendor.
A sales invoice or cardlock statement shall contain the following information:
(4) Receipt for Tax Paid to a Retail Vendor. The sales invoice shall upon payment by the purchaser constitute a receipt for the amount of diesel fuel tax included therein collected by the retail vendor.
The sales invoice shall contain the information in (A), (B), (C) and (D). The sales invoice or similar document shall also include the information in (E) and (F).
(6) User's Invoices. Users of diesel fuel subject to the tax shall obtain from the retail vendor of the diesel fuel and retain in their files an invoice for each delivery of such diesel fuel into the fuel tank or tanks of each vehicle operated by them and for each delivery into their bulk storage tank or tanks. These invoices shall set forth the information specified in subsection (b)(4) of this regulation and shall be filed or identified in a systematic manner so that they may readily be traced into their purchase or expense records and into their tax returns or claims for refund to the board.
Users should keep as part of their records a detail of figures upon which are based the totals set forth on their tax returns or claims for refund to the board. When diesel fuel is placed into the fuel tank of a qualified motor vehicle, either the user or the retail vendor should indentify on the invoice the qualified motor vehicle into which the diesel fuel was placed. All individual invoices supporting charge accounts which include purchases of diesel fuel shall be retained by the user in such manner as to enable the representatives of the board to establish the identity of all the merchandise or service included in the total charge and the specific gallonage of diesel fuel purchased.
Note: Authority cited: Section 60601, Revenue and Taxation Code. Reference: Sections 60044, 60107, 60201, 60202, 60204, 60204.5, 60205, 60205.5, 60206, 60604, 60605 and 60606, Revenue and Taxation Code.
1. New article 7 (section 1470) and section filed 3-1-99; operative 3-31-99 (Register 99, No. 10).
2. Amendment of section and Note filed 4-28-2003; operative 5-28-2003 (Register 2003, No. 18).