Relates to payments by a pharmacy benefit manager to participating pharmacies

Added a mandatory requirement for pharmacy benefit managers to include a reasonable process in their contracts to appeal, investigate, and resolve disputes regarding pricing for multi-source generics, brand-name drugs, and biologic products.

Reordered the procedural text regarding committee discharge and bill reprinting to clarify the legislative workflow.

Updated the bill identifier from S5939-A to S5939-B and adjusted the page number in the footer.

Added an explicit exemption stating that the bill's payment requirements do not apply to prescriptions paid for by union trust funds, collective bargaining agreements, or sponsored multi-employer plans.

Updated the bill title and version number from S 5939 to S 5939-A to indicate it has been amended and reprinted by the committee.

Reorganized the text of the act to incorporate the new union exemption language into the operative sections regarding pharmacy payments.