Tex. Education Code § 48.307

(a) For each student enrolled in the district, a school district is entitled to additional state aid for each school year in an amount equal to $40, or a greater amount provided by appropriation, to procure instructional material that has been:

(1) reviewed by the agency under Section 31.023;

(2) placed on the list of approved instructional materials maintained by the State Board of Education under Section 31.022;

(3) designated by the State Board of Education under Section 31.022 as being included or capable of being included in an instructional materials parent portal under Section 31.154; and

(4) acquired from a publisher, manufacturer, or other entity that has not been found to violate Section 31.151.

(b) A school district is entitled to the amount of state aid provided by Subsection (a) each school year, regardless of whether the district uses the amount during the school year for which the amount was provided.

(c) Additional state aid provided under this section shall be deposited to the credit of the district's instructional materials and technology account maintained by the commissioner under Section 31.0212 and may be accessed only for the procurement of instructional materials in accordance with this section.

(d) Funds provided to a school district under this section must be spent in compliance with the requirements for the use of funds provided under this section and Section 31.0211.