Sec. 451.416.  EMISSIONS TAX YEAR.  (a)  A motor vehicle emissions tax year begins on April 1 of each year and is divided into quarters.
(b)  A tax accruing during the second quarter of the tax year is three-fourths of the amount of the annual tax.  A tax accruing during the third quarter is one-half of the amount of the annual tax.  A tax accruing during the fourth quarter is one-fourth of the amount of the annual tax.
Acts 1995, 74th Leg., ch. 165, Sec. 1, eff. Sept. 1, 1995.