The Board of Building Regulations and Standards ("BBRS") adopts and incorporates by reference the International Residential Code, 2021 ("IBC"), as periodically amended by errata, the following chapters, as well as 110.R1 through 115AA. These, together with modifications as set forth, shall collectively comprise 780 CMR 51.00: Massachusetts Residential Code, otherwise known as the Massachusetts State Building Code, Tenth Edition, Residential Volume.
780 CMR, ch. 51, ch. 1, pt. 1, 101, R101.1