New York Codes, Rules and Regulations
Title 2 - DEPARTMENT OF AUDIT AND CONTROL
Chapter VI - New York State and Local Employees' Retirement System and New York State and Local Police and Fire Retirement System
Part 323 - Commencement Date Of Member Contributions Under Article 14, The Coordinated-escalator Retirement Plan
Section 323.2 - Commencement of contributions

Since few payrolls begin on January 1, 1977, the effective date of article 14, the commencement of contributions as of that date would present an obstacle to the implementation of the coordinated-escalator retirement plan. Therefore, the contributions required by section 517 shall be deducted beginning with the first full payroll period in 1977 with respect to which payment is made in 1977.