N.Y.C. Admin. Code § BC R101: Section BC R101: General

R101.1 General.

Where required by Section 803.9 of this code, the provisions of ASTM C 635 and ASTM C 636, as modified by this appendix, shall govern the design and installation of ceiling suspension systems used to support acoustical tiles, or acoustical lay-in panels weighing less than four pounds per square foot (191.5 Pa), not contributing to the fire-resistance rating of a floor or roof assembly and not used for meeting the noise control requirements of the building code. Refer to the rules of the department for any subsequent additions, modifications or deletions that may have been made to this standard in accordance with Section 28-103.19 of the Administrative Code.