health plan or health insurance issuer offering group or individual health insurance coverage to lower net costs for prescription drugs. . (d) Federal employees health benefits act Chapter 89 of subpart G of part III of title 5 of the United States Code is amended by adding at the end following: 8915. Improving pharmacy benefit manager services (a) In general For plan years beginning on or after January 1, 2026, except as provided in subsection (b), a pharmacy benefit manager shall derive no remuneration from any entity for services, benefit administration, or any other activities related to prescription drugs. (b) Exception for bona fide services (1) In general A pharmacy benefit manager may charge an entity a bona fide service fee for the provision of services to such entity if such fee is set forth in an agreement between the pharmacy benefit manager and such entity, and (2) the amount of any bona fide service fee— (A) shall be a flat dollar amount