The relevant statutory section applies beginning with the 2013-2014 school year and reads as follows:
ADMINISTRATION OF DISTRICT-REQUIRED BENCHMARK ASSESSMENT INSTRUMENTS TO PREPARE STUDENTS FOR STATE-ADMINISTERED ASSESSMENT INSTRUMENTS.
(a) In this section, "benchmark assessment instrument" means a district-required assessment instrument designed to prepare students for a corresponding state-administered assessment instrument.
(b) Except as provided by Subsection (c), a school district may not administer to any student more than two benchmark assessment instruments to prepare the student for a corresponding state-administered assessment instrument.
(c) The prohibition prescribed by this section does not apply to the administration of a college preparation assessment instrument, including the PSAT, the ACT-Plan, the SAT, or the ACT, an advanced placement test, an international baccalaureate examination, or an independent classroom examination designed or adopted and administered by a classroom teacher.
(d) A parent of or person standing in parental relation to a student who has special needs, as determined in accordance with commissioner rule, may request administration to the student of additional benchmark assessment instruments.