Feb 24, 2020 #1 FIVE50 Mechanical Joined Mar 20, 2019 Messages 13 Location US What edition of NFPA 13 is Mass. on?
Feb 24, 2020 #2 cdafd Specifier/Regulator Joined Aug 18, 2005 Messages 2,953 Location US Appears 2013 You might call and confirm https://up.codes/viewer/massachusetts/ibc-2015/chapter/35/referenced-standards#35 Upvote 0 Downvote
Appears 2013 You might call and confirm https://up.codes/viewer/massachusetts/ibc-2015/chapter/35/referenced-standards#35