1. Any other provision of law to the contrary notwithstanding, on or after July first, nineteen hundred seventy a member may retire pursuant to the provisions of this section when, a. he has credit for thirty-five or more years of total service, or b. he has attained age fifty-five or older and has received credit for five or more years of full time New York state service, at least two of which have been rendered since the date upon which he last joined the retirement system and since June thirtieth, nineteen hundred sixty-seven, or c. he has attained age fifty-five or older and has credit for two or more years of full time service in the period subsequent to June thirtieth, nineteen hundred sixty-seven and has rendered two years of full time New York state service in the period subsequent to his attainment of age fifty-three and subsequent to the date upon which he last joined the retirement system by filing with the system a statement duly attested, setting forth at what time not less than thirty days nor more than ninety days subsequent to the execution and filing thereof he desires such retirement.
In the case of persons who last became members on or after July first, nineteen hundred seventy-three, the provisions of this section shall apply only to those who retire prior to July first, nineteen hundred seventy-four.