(a) A state agency on request of another state agency shall disclose information relating to the amounts charged by a pharmacy benefit manager for pharmacy benefit manager services provided under a prescription drug program and other requested pricing information related to a contract for pharmacy benefit manager services. A state agency shall provide information requested under this section not later than the 30th day after the date the information is requested.
(b) Subsection (a) does not require a state agency to disclose information the agency is specifically prohibited from disclosing under a contract with a pharmacy benefit manager executed before September 1, 2009.

(c) A contract entered, amended, or extended on or after September 1, 2009, may not contain a provision that prohibits a state agency from disclosing under this subchapter information on the amounts charged by a pharmacy benefit manager for pharmacy benefit manager services provided under a prescription drug program or from disclosing under this subchapter other pricing information related to the contract.