(a) A school district may receive bids or proposals under this chapter through electronic transmission if the board of trustees of the school district adopts rules to ensure the identification, security, and confidentiality of electronic bids or proposals and to ensure that the electronic bids or proposals remain effectively unopened until the proper time.
(b) Notwithstanding any other provision of this chapter, an electronic bid or proposal is not required to be sealed. A provision of this chapter that applies to a sealed bid or proposal applies to a bid or proposal received through electronic transmission in accordance with the rules adopted under Subsection (a).