Check out my interview for NFPA Office Hours about some of the key changes in the 2015 edition of NFPA 1. Because NFPA 1 contains extracts from many other codes and standards, there were literally hundreds of changes - in this half-hour segment, I tried to highlight some of the bigger ones. As always, if you're interested in seeing all of the changes, you can head over to the NFPA 1 document information page and review the First Draft Report and Second Draft Report (click on 'Read the archived revision information').
I hope you find it informative!
Gregory Harrington, P.E.
Staff Liaison, NFPA 1