Tennessee Code Title 67. Taxes and Licenses § 67-3-303

(a) The tax imposed by § 67-3-203 and the fee imposed by § 67-3-204 on petroleum products shall be measured by gallons of petroleum products removed, other than through a bulk transfer, by a licensed supplier:

(b) Anything to the contrary notwithstanding, the special privilege tax and the environmental assurance fee on gasoline shall be measured and levied at the time the product first comes to rest in this state.

(c) With respect to the operator of a terminal in this state, the tax imposed by § 67-3-203 and the fee imposed by § 67-3-204, shall be measured and levied annually on petroleum products other than gasoline by the amount by which net gallons lost or unaccounted for, including transmix, within the terminal exceed the sum of net gallon gains, plus one-half of one percent (0.5%) times the number of all net gallons removed from such terminal across the rack or in bulk.