B. Subject to the following, vendors shall label use fuel dispensers pursuant to standards established by the weights and measures services division of the Arizona department of agriculture:

1. 1. Labels on use fuel dispensers shall notify the purchaser of the state use fuel tax rate. The department of transportation shall provide the use fuel dispenser labels to vendors if the vendor submits a receipt from one fueling position for each use fuel type and, if applicable, one in-store point-of-sale system.
2. 2. If the vendor sells use fuel only to light class motor vehicles or use class motor vehicles that are exempt pursuant to section 28-5432 from the weight fee prescribed in section 28-5433, or both, the vendor shall post that limitation and include the tax rate prescribed in section 28-5606, subsection B, paragraph 1.
3. 3. If light class motor vehicles and use class motor vehicles are allowed to fuel at the same use fuel dispenser, the vendor shall include the tax rate prescribed in section 28-5606, subsection B, paragraph 2 and post a notice that the tax rate for light class motor vehicles and use class motor vehicles that are exempt pursuant to section 28-5432 from the weight fee prescribed in section 28-5433 is the tax rate prescribed in section 28-5606, subsection B, paragraph 1.
4. 4. If the vendor prohibits light class motor vehicles or use class motor vehicles from dispensing fuel from a specific fuel dispenser, the vendor shall post that prohibition.

5. 5. In addition to posting a sign on a use fuel dispenser that indicates that the price of the use fuel dispensed from that dispenser includes the applicable federal and state taxes, a vendor that dispenses use fuel from a cardlock facility shall require the purchaser of use fuel for light class motor vehicles or use class motor vehicles that are exempt pursuant to section 28-5432 from the weight fee prescribed in section 28-5433, or both, to complete a declaration of status in a form and a manner approved by the director. For the purposes of this paragraph, "cardlock facility" means a use fuel vendor that satisfies all of the following:

   1. (a) Is licensed in this state.
   2. (b) Sells only to preapproved purchasers of use fuel who have been issued cards, keys or other controlled access to identify the exclusive withdrawal of that particular purchaser.
   3. (c) Does not have a representative on the premises to observe the withdrawal of use fuel from the vendor's storage.
   4. (d) Measures volumes of fuel dispensed by pump meters or other accurate recording devices.