Section 8508 - Rights and duties of annuitants(a) Election by joint coverage annuitants.--Any annuitant who is a joint coverage member who was receiving an annuity prior to July 1, 1962 may elect to receive his annuity without reduction on account of social security old-age insurance benefits provided that he shall file such election with the board prior to one year following the effective date of this part and shall make a lump sum payment within 60 days of receipt of the certification of the amount due.(b) Periodic earnings statements by disability annuitants.--It shall be the duty of an annuitant receiving a disability annuity while still under superannuation age to furnish a written statement within 30 days of the close of each year of all earned income during that year and information showing whether or not he is able to engage in a gainful occupation and such other information as may be required by the board. On failure, neglect, or refusal to furnish such information for the period of the preceding year, the board may refuse to make further payments due to disability to such annuitant until he has furnished such information to the satisfaction of the board. Should such refusal continue for six months, all of his rights to the disability annuity payments in excess of any annuity to which he is otherwise entitled shall be forfeited from the date of his last statement to the board. Any moneys received in excess of those to which he was entitled shall be deducted from the present value of the annuity to which he is otherwise entitled.(c) Medical examinations of disability annuitants.--Should any disability annuitant refuse to submit to a medical examination by a physician or physicians at the request of the board, his payments due to disability shall be discontinued until the withdrawal of such refusal. Should such refusal continue for a period of six months, all of his rights to the disability annuity payments in excess of any annuity to which he is otherwise entitled shall be forfeited.(d) Continuances of disability annuities.--In all instances, the member shall have the burden of establishing continued disability. 1975, Oct. 2, P.L. 298, No. 96, § 1, imd. effective. Amended 1991, Aug. 5, P.L. 183, No. 23, § 9, imd. effective; 1994, April 29, P.L. 159, No. 29, § 6, effective in 60 days.