offering group or individual health insurance coverage to lower net costs for prescription drugs. . (b) ERISA (1) In general Subpart B of part 7 of subtitle B of title I of the Employee Retirement Income Security Act of 1974 ( 29 U.S.C. 1185 et seq. ) is amended by inserting after section 725 the following: 726. 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 service fees (1) In general A pharmacy benefit man-ager 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 the amount of any bona fide service fee— (A) shall be a flat dollar amount