(a) According to the schedule of adoption procedures, a publisher shall provide each school district and open-enrollment charter school with information that fully describes instructional materials submitted for adoption. Descriptive information provided to each school district or open-enrollment charter school shall be identical to the descriptive information provided to the Texas Education Agency and education service centers.(b) Upon request by the instructional materials coordinator of a school district or open-enrollment charter school, a publisher shall provide one complete electronic sample in an open file format or closed format of adopted instructional materials. Samples of learning systems and electronic, visual, or auditory media may be provided in demonstration or representative format. Samples of instructional materials provided to school districts shall be labeled "Sample Copy - Not for Classroom Use." Samples to schools are not required for materials submitted for midcycle review, as specified in §66.27 of this title (relating to Proclamation, Public Notice, and Schedule for Adopting Instructional Materials).(c) Samples supplied to school districts shall be provided and distributed at the expense of the publisher. No state or local funds shall be expended to purchase, distribute, or ship sample materials. Publishers may make arrangements with school districts or open-enrollment charter schools to retrieve samples after local selections are completed, but the state does not guarantee return of sample instructional materials.