19 Tex. Admin. Code § 22.30
As requested by institutions throughout the academic year, the Board shall forward to each participating institution a portion of its allocation of funds for timely disbursement to students. Institutions will have until the close of business on August 1, or the first working day thereafter if it falls on a weekend or holiday, to encumber program funds from their allocation. After that date, institutions lose claim to any funds in the current fiscal year not yet drawn down from the Board for timely disbursement to students. Funds released in this manner in the first year of the biennium become available to the institution for use in the second year of the biennium. Funds released in this manner in the second year of the biennium become available to the Board's program for utilization in grant processing. Should these unspent funds result in additional funding available for the next biennium's program, revised allocations, calculated according to the allocation methodology specified in § 22.29 of this subchapter (relating to Allocation of Funds), will be issued to participating institutions during the fall semester.
19 Tex. Admin. Code § 22.30