Relevant Codes 

International Building Code (IBC)

https://www.iccsafe.org/products-and-services/i-codes/2018-i-codes/ibc/

International Residential Code (IRC)

https://codes.iccsafe.org/content/IRC2021P2

Massachusetts State Building Code - 780 CMR

https://www.mass.gov/massachusetts-state-building-code-780-cmr

American Wood Council (AWC) - codes and Standards 

https://awc.org/codes-and-standards/