; and (2) including copies of the reports and supporting detailed economic analyses submitted pursuant to section 399OO. (b) Trade secrets and confidential information This section does not authorize the disclosure of confidential commercial information or trade secrets. . 4. Study on fiduciary duties of pharmacy benefit managers (a) In general The Secretary of Labor shall conduct, and submit to Congress a report describing the results of, a study on the impacts of a change in policy described in subsection (b). (b) Policy described Under a policy referred to in subsection (a)— (1) an entity providing pharmacy benefit management services would be considered a fiduciary within the meaning of section 3(21) of the Employee Retirement Income Security Act of 1974 ( 29 U.S.C. 1002(21) ) with respect to a group health plan or group health insurance coverage; and (2) such an entity would— (A) be subject to the responsibilities, obligations, and duties imposed on fiduciaries under part 4 of subtitle B of title I of such Act ( 29 U.S.C. 1101 et seq. ); and (B) make the required fiduciary disclosure under section 408(b)(2)(B)(iii) of such Act ( 29 U.S.C. 1108(b)(2)(B)(iii) ) with respect to the pharmacy benefit management services provided to the plan or coverage. (c) Definition of pharmacy benefit management services In this section, the term pharmacy benefit management services means services related to— (1) negotiating prices with respect to prescription drugs on behalf of a group health plan or health insurance issuer offering group health insurance coverage