(a) Except as provided by Subsection (b) of this section, a district or port authority officer or employee commits an offense if the person knowingly or intentionally violates a provision of this subchapter. An offense under this subsection is a Class C misdemeanor.
(b) A district or port authority officer or employee commits an offense if the person makes or authorizes separate, sequential, or component purchases to avoid the competitive bidding or proposal procedure requirements of Section 60.404 or 60.405 of this code. An offense under this subsection is a Class B misdemeanor.