§ 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.