State Building Code Requirements
Most states use the IRC Code, but some use different years of the code. Below is a list of state requirements. Check with your state as changes may occur.
State Statewide/Local Year of Code Required
Alabama Statewide/Local 2015/varies
Alaska Local 2018
Arizona Statewide/Local 2018/varies
Arkansas Statewide 2012
California Statewide 2021
Colorado Statewide with Limitations /Local 2021/varies
Connecticut Statewide 2021
Delaware Local 2018
Florida Statewide 2021
Georgia Statewide 2018
Hawaii Statewide/Local 2018
Idaho Statewide 2018
Illinois Local varies
Indiana Statewide 2018
Iowa Statewide with Limitations/Local 2015/varies
Kansas Local 2015
Kentucky Statewide 2015
Louisiana Statewide 2021
Maine Statewide 2015
Maryland Statewide 2018
Massachusetts Statewide 2018
Michigan Statewide 2015
Minnesota Statewide 2018
Mississippi Statewide may not be effective varies
Missouri Statewide with limitations/Local 2018/varies
Montana Statewide 2021
Nebraska Statewide with limitations/Local 2018/varies
Nevada Statewide with limitations/Local 2018/varies
New Hampshire Statewide 2018
New Jersey Statewide 2021
New Mexico Statewide 2021
New York Statewide 2018/varies
North Carolina Statewide 2015
North Dakota Statewide with limitations/Local 2021
Ohio Statewide 2018
Oklahoma Statewide with limitations 2018
Oregon Statewide 2018
Pennsylvania Statewide 2018
Rhode Island Statewide 2018
South Carolina Statewide 2021
South Dakota Local 2015/varies
Tennessee Statewide 2018
Texas Statewide/Local 2012/varies
Utah Statewide 2015/varies
Vermont Local 2015
Virginia Statewide 2018
Washington Statewide 2018
West Virginia Statewide 2018
Wisconsin 2015
Wyoming Local 2021/varies
Alabama Statewide/Local 2015/varies
Alaska Local 2018
Arizona Statewide/Local 2018/varies
Arkansas Statewide 2012
California Statewide 2021
Colorado Statewide with Limitations /Local 2021/varies
Connecticut Statewide 2021
Delaware Local 2018
Florida Statewide 2021
Georgia Statewide 2018
Hawaii Statewide/Local 2018
Idaho Statewide 2018
Illinois Local varies
Indiana Statewide 2018
Iowa Statewide with Limitations/Local 2015/varies
Kansas Local 2015
Kentucky Statewide 2015
Louisiana Statewide 2021
Maine Statewide 2015
Maryland Statewide 2018
Massachusetts Statewide 2018
Michigan Statewide 2015
Minnesota Statewide 2018
Mississippi Statewide may not be effective varies
Missouri Statewide with limitations/Local 2018/varies
Montana Statewide 2021
Nebraska Statewide with limitations/Local 2018/varies
Nevada Statewide with limitations/Local 2018/varies
New Hampshire Statewide 2018
New Jersey Statewide 2021
New Mexico Statewide 2021
New York Statewide 2018/varies
North Carolina Statewide 2015
North Dakota Statewide with limitations/Local 2021
Ohio Statewide 2018
Oklahoma Statewide with limitations 2018
Oregon Statewide 2018
Pennsylvania Statewide 2018
Rhode Island Statewide 2018
South Carolina Statewide 2021
South Dakota Local 2015/varies
Tennessee Statewide 2018
Texas Statewide/Local 2012/varies
Utah Statewide 2015/varies
Vermont Local 2015
Virginia Statewide 2018
Washington Statewide 2018
West Virginia Statewide 2018
Wisconsin 2015
Wyoming Local 2021/varies