Tex. Tax Code § 162.354: BACKUP TAX; LIABILITY.

(a) A backup tax is imposed at the rate prescribed by Section 162.353 on:

(1) a person who obtains a refund of tax on compressed natural gas or liquefied natural gas by claiming the fuel was used for an exempt purpose, but actually uses the fuel for a taxable purpose;

(2) a person who operates a motor vehicle on a public highway using compressed natural gas or liquefied natural gas on which tax has not been paid;

(3) a person who sells compressed natural gas or liquefied natural gas that is delivered into the fuel supply tank of a motor vehicle, on which tax was not paid, and who knew or had reason to know that the fuel would be used for a taxable purpose; and

(4) a person who delivers into the fuel supply tank of a motor vehicle compressed natural gas or liquefied natural gas on which tax was not paid and who knew or had reason to know that the fuel would be used for a taxable purpose.

(b) If the person who operates a motor vehicle described by Subsection (a)(2) is not the owner or lessee of the motor vehicle, both the owner or lessee and the operator are liable for the tax.

(c) The tax imposed under Subsection (a)(3) is also imposed on the ultimate consumer.

(d) The tax imposed under Subsection (a)(4) is also imposed on the operator of the motor vehicle or the motor vehicle's owner or lessee.

(e) The tax liability imposed by this section is in addition to any penalty imposed under this chapter.

Added by Acts 2013, 83rd Leg., R.S., Ch. 990 (H.B. 2148), Sec. 4, eff. September 1, 2013.