(a) A private school administering the assessments under the Texas Education Code (TEC), Chapter 39, Subchapter B, shall follow procedures specified in the applicable test administration materials. Each private school shall maintain test security and confidentiality as delineated in the TEC, §39.030.(b) A private school administering the assessments under the TEC, Chapter 39, Subchapter B, shall reimburse the Texas Education Agency for each assessment administered. The per-student cost may not exceed the cost of administering the same assessment to a student enrolled in a school district.(c) A private school administering the assessments under the TEC, Chapter 39, Subchapter B, shall provide to the commissioner of education, as required by law and determined appropriate by the commissioner, academic excellence indicator information described in the TEC, §39.053(c) and §39.301(c). For indicator information defined and collected through the Public Education Information Management System (PEIMS), private schools shall follow the PEIMS Data Standards.