Massachusetts State Seal An official website of the Commonwealth of Massachusetts Here's how you know

Official websites use .mass.gov

A .mass.gov website belongs to an official government organization in Massachusetts.

Secure websites use HTTPS

A lock icon or https:// means you've safely connected to the official website. Share sensitive information only on official, secure websites.

Past editions of the MA State Building code

View past editions below.

Seventh Edition (Base Volume)

Forward 

Table of Contents 

Chapter 1: Administration 

Chapter 2: Definitions 

Chapter 3: Use and Occupancy Classification 

Chapter 4: Special Detailed Requirements Based upon Use and Occupancy 

Chapter 5: General Building Heights and Areas 

Chapter 6: Types of Construction 

Chapter 7: Fire-Resistance-Rated Construction 

Chapter 8: Interior Finishes 

Chapter 9: Fire Protection and Life Safety Systems 

Chapter 10: Means of Egress 

Chapter 11: Accessibility 

Chapter 12: Interior Environment 

Chapter 13: Energy Conservation 

Chapter 14: Exterior Walls 

Chapter 15: Roof Assemblies and Roof Top Structures 

Chapter 16: Structural Design 

Chapter 17: Quality Assurance During Construction 

Chapter 18: Foundations and Retaining Walls 

Chapter 19: Concrete 

Chapter 20: Aluminum 

Chapter 21: Masonry 

Chapter 22: Steel 

Chapter 23: Wood 

Chapter 24: Glass and Glazing

Chapter 25: Gypsum Board and Plaster 

Chapter 26: Plastic 

Chapter 27: Electrical 

Chapter 28: Mechanical Systems 

Chapter 29: Plumbing Systems 

Chapter 30: Elevators and Conveying 

Chapter 31: Special Construction 

Chapter 32: Encroachments into the Public Right-of-Way 

Chapter 33: Safeguards During Construction 

Chapter 34: Existing Structures 

Chapter 35: Referenced Standards 

Chapters 36-50: Reserved

Chapter 51-109: See Seventh Edition of MSBC for One and Two Family Dwellings

Chapter 110: Special Regulations 

    R1: Concrete Testing Laboratories Licensing
    R2: Concrete Testing Personnel Licensing
    R3: Manufactured Buildings, Building Components and Mobile Homes
    R4: Use of Native Lumber
    R5: Construction Supervisors
            CSL Scope of Work 
    R6: Registration and Enforcement of Home Improvement Contractor Program
            HIC Regulations Removed from MSBC 
    R7: Certification of Inspectors of Buildings, Building Commissioners, and Local Inspectors
            BO Energy Code Training 
            BO Energy Code Training, Final
            BO Stretch Code Training 

Chapter 120: Appendices

    Appendices A to J 
           AG: Construction in Flood Zones
           AG: Floodplain Construction 
    Appendices K to O 
    Appendix P 
    Appendices Q to Z 
           AX: Fee Schedule Update
           AX: Fee Schedule Update 
           AZ: Townhouse Snow Loads 

Seventh Edition (Residential Volume)

Forward

Table of Contents 

Chapter 51: Administration for Single- And Two-Family Dwellings

Chapter 52: Definitions

Chapter 53: Building Planning for Single- And Two-Family Dwellings

Chapter 54: Foundations

Chapter 55: Floors

Chapter 56: Wall Construction

Chapter 57: Wall Covering

Chapter 58: Roof-Ceiling Construction

Chapter 59: Roof Assemblies

Chapter 60: Chimneys, Fireplaces and Solid Fuel-Burning Appliances

Chapter 61: Energy Efficiency

Chapter 62: Mechanical Administration

Chapter 63: General Mechanical Requirements

Chapter 64: Heating and Cooling Equipment

Chapter 65: Exhaust Systems

Chapter 66: Duct Systems

Chapter 67: Combustion Air

Chapter 68: Chimneys and Vents

Chapter 69: Special Fuel-Burning Equipment

Chapter 70: Boilers and Water Heaters

Chapter 71: Hydronic Piping

Chapter 72: Special Piping and Storage Systems

Chapter 73: Solar Systems

Chapter 74: Fuel Gas

Chapter 75: Plumbing Administration

Chapter 76: General Plumbing Requirements

Chapter 77: Plumbing Fixtures

Chapter 78: Water Heaters

Chapter 79: Water Supply and Distribution

Chapter 80: Sanitary Drainage

Chapter 81: Vents

Chapter 82: Traps

Chapters 83-92: Electrical Provisions

Chapter 93: Repair, Renovation, Alteration, Addition, Demolition and Change of Use of Existing One- And Two-Family Dwellings

Chapters 94-99: Reserved

Chapter 100: Referenced Standards

Index

    The following are amendments of 780 CMR 51, as promulgated by the BBRS:

Sixth Edition

Forward and Acknowledgements 

Table of Contents 

User Guide

Chapter 1: Administration

Chapter 2: Definitions

Chapter 3: Use or Occupancy

Chapter 4: Special Use and Occupancy

Chapter 5: General Building Limitations

Chapter 6: Types of Construction

Chapter 7: Fire Resistant Materials and Construction

Chapter 8: Interior Finishes

Chapter 9: Fire Protection Systems

Chapter 10: Means of Egress

Chapter 11: Accessibility

Chapter 12: Interior Environment

Chapter 13: Energy Conservation

Chapter 14: Exterior Wall Covering

Chapter 15: Roof and Roof Covering

Chapter 16: Structural Loads

Chapter 17: Structural Tests and Inspections

Chapter 18: Foundations and Retaining Walls

Chapter 19: Concrete

Chapter 20: Lightweight Metals

Chapter 21: Masonry

Chapter 22: Steel

Chapter 23: Wood

Chapter 24: Glass and Glazing

Chapter 25: Gypsum Board and Plaster

Chapter 26: Plastic

Chapter 27: Electrical Wiring, Equipment and Systems

Chapter 28: Mechanical Systems

Chapter 29: Plumbing Systems

Chapter 30: Elevators and Conveying Systems

Chapter 31: Special Construction

Chapter 32: Construction in the Right-of-Way

Chapter 33: Site Work, Demolition, and Construction

Chapter 34: Repair, Alteration, Addition and Change of Use of Existing Structures

Chapter 35: Manufactured Buildings, Manufactured Building Components, and Manufactured Housing

Chapter 36: One and Two Family Dwellings

List of Appendices

    A:    Referenced Standards 
    B:    Sample Building Permit Application Forms 
           Official Interpretation 1-85 to 49-98
            Official Interpretation 50-98 
    C:    Recommended Fastening Schedule 
    D:    Guidance for Selection of Foundation Material Classes in Table 1804.3 
    E:    Procedure for Accounting for Series and Parallel Heat
    F:    Reference Data for Repair, Addition, and Change of Use of Existing Buildings 
    G:    Unit Dead Loads for Design Purposes 
    H:    Historic Buildings 
    I:    Independent Structural Engineering Review 
    J:    Energy Provisions
                Pages 753 - 762 
                Pages 769.1 - 760.32 
    K:    Floor Protector Thermal Conductivity Calculations 
    L:    Schedule of Fees 

Special Rules and Regulations

    R1: Concrete Testing Laboratories Licensing 
    R2: Concrete Testing Personnel Licensing 
    R3: Manufactured Buildings, Building Components and Mobile Homes 
    R4: Use of Native Lumber 
    R5: Construction Supervisors 
    R6: Registration and Enforcement of Home Improvement Contractor Program 
    R7: Certification of Inspectors of Buildings, Building Commissioners, and Local Inspectors

Fifth Edition

Forward and Acknowledgments 

Table of Contents 

Chapters 1 through 9 

Chapters 10 through 34 

Appendices 

Index 

Fourth Edition

Forward, Acknowledgements and Amendments 

Table of Contents 

Chapters 1 through 10 

Chapters 11 through 21 

Index 

Third Edition

Second Edition

Forward and Acknowledgements 

Table of Contents 

Articles 1 through 8 

Articles 9 through 19 

Article 20 

Appendix 

Index 

First Edition

Forward and Acknowledgements 

Table of Contents 

Articles 1 through 7 

Articles 8 through 20 

Appendix 

Index 

Help Us Improve Mass.gov  with your feedback

Please do not include personal or contact information.
Feedback