Sec. 502.402.  OPTIONAL COUNTY FEE FOR TRANSPORTATION PROJECTS.  (a)  This section applies only to:
(1)  a county that:
(A)  borders the United Mexican States; and
(B)  has a population of more than 250,000;
(2)  a county that has a population of more than 1.5 million that is coterminous with a regional mobility authority; and
(3)  a county that has a population of more than 190,000 and not more than 1.5 million that is coterminous with a regional mobility authority.
(b)  The commissioners court of a county by order may impose an additional fee for a vehicle registered in the county. Except as provided by Subsection (b-1), the fee may not exceed $10.  In a county described by Subsection (a)(3), the fee must be approved by a majority of the qualified voters of the county voting on the issue at a referendum election, which the commissioners court may order and hold for that purpose.
(b-1)  The commissioners court of a county described by Subsection (a) with a population of less than 700,000 may increase the additional fee to an amount that does not exceed $20 if approved by a majority of the qualified voters of the county voting on the issue at a referendum election, which the commissioners court may order and hold for that purpose.
(c)  A vehicle that may be registered under this chapter without payment of a registration fee may be registered under this section without payment of the additional fee.
(d)  A fee imposed under this section may take effect and be removed in accordance with the requirements of Section 502.401.
(e)  The additional fee shall be collected for a vehicle when other fees imposed under this chapter are collected.  The fee revenue collected shall be sent to a regional mobility authority located in the county to fund long-term transportation projects in the county that are consistent with the purposes specified by Section 7-a, Article VIII, Texas Constitution.
(f)  The department shall adopt rules necessary to administer registration for a vehicle being registered in a county imposing a fee under this section.
Transferred, redesignated and amended from Transportation Code, Section 502.1725 by Acts 2011, 82nd Leg., R.S., Ch. 1296 (H.B. 2357), Sec. 136, eff. January 1, 2012.
Amended by: 
Acts 2013, 83rd Leg., R.S., Ch. 706 (H.B. 3126), Sec. 1, eff. September 1, 2013.
Acts 2013, 83rd Leg., R.S., Ch. 1273 (H.B. 1198), Sec. 1, eff. September 1, 2013.
Acts 2013, 83rd Leg., R.S., Ch. 1277 (H.B. 1573), Sec. 1, eff. September 1, 2013.
Acts 2015, 84th Leg., R.S., Ch. 1236 (S.B. 1296), Sec. 17.005, eff. September 1, 2015.
Acts 2021, 87th Leg., R.S., Ch. 466 (H.B. 1698), Sec. 1, eff. September 1, 2021.