Sec. 551A.053.  OPERATION ON HIGHWAY AUTHORIZED BY MUNICIPALITY OR CERTAIN COUNTIES.  (a)  In addition to the operation authorized by Section 551A.055, the governing body of a municipality may allow an operator to operate an unregistered off-highway vehicle on all or part of a highway that:
(1)  is in the corporate boundaries of the municipality; and
(2)  has a posted speed limit of not more than 35 miles per hour.
(b)  In addition to the operation authorized by Section 551A.055, the commissioners court of a county described by Subsection (c) may allow an operator to operate an unregistered off-highway vehicle on all or part of a highway that:
(1)  is located in the unincorporated area of the county; and
(2)  has a posted speed limit of not more than 35 miles per hour.
(c)  Subsection (b) applies only to a county that:
(1)  borders or contains a portion of the Red River;
(2)  borders or contains a portion of the Guadalupe River and contains a part of a barrier island that borders the Gulf of Mexico; or
(3)  is adjacent to a county described by Subdivision (2) and:
(A)  has a population of less than 37,000; and
(B)  contains a part of a barrier island or peninsula that borders the Gulf of Mexico.
Added by Acts 2019, 86th Leg., R.S., Ch. 1233 (H.B. 1548), Sec. 31, eff. June 14, 2019.