; and (iii) a summary document that includes the information described in clauses (i) and (ii) that the Secretary, the Secretary of Health and Human Services, and the Secretary of the Treasury determine useful to plan sponsors for purposes of selecting pharmacy benefit management services, provided that such summary documents include only aggregate information. (B) Opt-in for group health insurance coverage (i) In general A plan sponsor of group health insurance coverage offered in connection with a group health plan may, on an annual basis, for plan years beginning on or after the date that is 30 months after the date of enactment of the Pharmacy Benefit Manager Reform Act , elect to require an entity providing pharmacy benefit management services on behalf of a health insurance issuer offering group health insurance coverage to submit to such plan sponsor a report in accordance with this subsection. (ii) Contents of reports (I) Covered group health insurance coverage In the case of an entity providing pharmacy benefit management services on behalf of an issuer that offers covered group health insurance coverage, a report provided pursuant to clause (i) shall include, with respect to the applicable covered group health insurance coverage, the information required under paragraph (1) for covered group health plans. (II) Other group health insurance coverage In the case of an entity providing pharmacy benefit management services on behalf of an issuer that offers group health insurance coverage that is not covered group health insurance, a report provided pursuant to clause (i) shall include, with respect to the applicable group health insurance coverage— (aa) the information described in subparagraphs (D), (E), (F), and (G) of paragraph (1)