N.Y. Multiple Dwelling Law § 84: Construction standards for the control of noise

§ 84. Construction standards for the control of noise. On or before

January first, nineteen hundred sixty-nine, the department shall

formulate, adopt, promulgate and thereafter from time to time amend

standards of sound retardation for the walls, partitions and floors and

ceilings between apartments and between apartments and public spaces

situated therein based on the direct measurement of sound transmission

loss determined in decibels for various frequencies or in accordance

with the ASTM sound transmission class system or in accordance with such

other recognized method or system for measuring reduction of sound

transmission as the department may determine to be appropriate. Any

construction of a multiple dwelling commenced after January first,

nineteen hundred seventy shall comply with the standards promulgated

pursuant to this section in effect at the time of commencement of such

construction.