Information about the recent changes in the NY City Building Code that took effect on November 1st is available at the North American Modern Building Alliance site.

A PDF summarizes the new code requirements and provides an overview of the confusion regarding the NFPA 285 fire testing/documentation requirements and the challenges for additional site-specific testing of assemblies with the required fireblocking added to the tested assembly.

These requirements can be found in the 2022 NYC BC Sections: 718.2.6.1; 1406; 1407; 1408; 1409