Suspension or reduction of retirement income payments during disability

(a) Retirement income payments being made to a member shall be suspended during any period when the member is receiving disability payments and necessary medical and hospital expenses because of injury incurred in the performance of certain duties, as provided in subsection (a) of section 10-183aa. (b) Retirement income payments being made to a member receiving disability payments and necessary medical and hospital expenses under the provisions of the Workers' Compensation Act, as set forth in chapter 568, shall be reduced while such disability payments are being made, except as provided in subsection (c) of this section. The amount of each reduced retirement income payment shall equal the excess, if any, of the full retirement income payment over the disability payments. (c) Retirement income payments shall not be reduced: (1) For a member receiving a specific indemnity award under section 31-307 or 31-308; (2) for a member who received a judgment for personal injuries and pain and suffering under the provisions of section 31-293, provided he has reimbursed the state in full for all sums expended by it under chapter 568. (d) This section applies to claims for workers' compensation and disability retirement from injuries sustained on and after January 1, 1980.