Digest: Makes rules for some insurers and PBMs about 340B drugs. (Flesch Readability Score: 61.3). [Digest: The Act tells OHA to study health care. (Flesch Readability Score: 92.9).] [Requires the Oregon Health Authority to study health care. Directs the authority to submit findings to the interim committees of the Legislative Assembly related to health not later than September 15, 2026.] [Sunsets on January 2, 2027.] Allows insurers offering policies or certificates of health insurance and pharmacy benefit managers to require that a claim for reimbursement of a prescription drug include a modifier or other indicator that the drug is a 340B drug unless certain requirements are met. Takes effect on the 91st day following adjournment sine die.