Secretary, the Secretary shall appoint, retain, and compensate accountants, actuaries, and other professional service personnel as may be necessary in connection with the Secretary’s service as trustee under this section. 811. State assessment authority (a) In General Notwithstanding section 514, a State may impose by law a contribution tax on an association health plan described in section 806(a)(2), if the plan commenced operations in such State after the date of the enactment of this part. (b) Contribution Tax For purposes of this section, the term contribution tax imposed by a State on an association health plan means any tax imposed by such State if— (1) such tax is computed by applying a rate to the amount of premiums or contributions, with respect to individuals covered under the plan who are residents of such State, which are received by the plan from participating employers located in such State or from such individuals, (2) the rate of such tax does not exceed the rate of any tax imposed by such State on premiums or contributions received by insurers or health maintenance organizations for health insurance coverage offered in such State in connection with a group health plan, (3) such tax is otherwise nondiscriminatory, and (4) the amount of any such tax assessed on the plan is reduced by the amount of any tax or assessment otherwise imposed by the State on premiums, contributions, or both received by insurers or health maintenance organizations for health insurance coverage, aggregate excess/stop loss insurance (as defined in section 806(g)(1)), specific excess/stop loss insurance (as defined in section 806(g)(2)), other insurance related to the provision of medical care under the plan, or any combination thereof provided by such insurers or health maintenance organizations in such State in connection with such plan. 812. Definitions and rules of construction (a) Definitions For purposes of this part— (1) Group health plan The term group health plan has the meaning provided in section 733(a)(1) (after