Massachusetts Building Code
Massachusetts Mass uses 2009 IBC International Building Code with the Mass edits. Here are the links:
2009 IBC:
http://publicecodes.cyberregs.com/icod/index.htm
Mass edits (version 8 currently)
http://www.mass.gov/eopss/consumer-prot-and-bus-lic/license-type/csl/building-codebbrs.html
Mass also uses their own flavor of accessibility requirements. They do not use ANSI A117. Probably also need to review with ADA
Mass ADA:
Federal ADA:
http://www.ada.gov/2010ADAstandards_index.htm