Each State agency administering or supervising the administration of the State plan approved under title I of the Rehabilitation Act of 1973 (
29 U.S.C.
720 et seq.) may elect to participate in the Program as an employment network with respect to a disabled beneficiary. If the State agency does elect to participate in the Program, the State agency also shall elect to be paid under the outcome payment system or the outcome-milestone payment system in accordance with subsection (h)(1) of this section. With respect to a disabled beneficiary that the State agency does not elect to have participate in the Program, the State agency shall be paid for services provided to that beneficiary under the system for payment applicable under section
422
(d) of this title and subsections (d) and (e) of section
1382d of this title. The Commissioner shall provide for periodic opportunities for exercising such elections.