International Code Adoption by State

The International Codes, or I-Codes, are developed and published by the International Code Council (ICC).  The I-Codes are adopted by all fifty states, the District of Columbia, and several countries.  Each state decides at what level, e.g., state or jurisdiction (municipality, city, etc.), codes are adopted.  Additionally, the code year adopted and the authority for introducing local amendments varies.  The jurisdictions responsible, at whatever level, have to manage code adoption and implementation.  While government entities are focused on their specific jurisdiction and thus familiar with their building code status, it can be difficult for designers who work across jurisdictions to identify the codes in use and where to access them, especially where local amendments are in place.

With this in mind, this page has been created to provide a quick reference to the code year currently adopted by each state for the International Building Code (IBC) and International Residential Code (IRC).  An “X” designation in the table below denotes those states where a specific IBC and or IRC code year has not been adopted and decisions are made at a local level.

Each state link leads to a brief overview of the current building (IBC) and residential (IRC) codes being used (and in most cases links to view the codes online for free) and other useful and interesting information, including links to information on the corresponding version(s) of Plan Analyst.  A sample of organizations who have used Plan Analyst within a state are provided to show that both building officials and architects/designers can benefit equally from the significant time savings the software delivers from automating the code study / plan review process.

JurisdictionIBCIRCState Specific Code ReferenceiCCsafe.org
Alabama1515Alabama Building and Residential CodesAlabama-ICC
Alaska2118Alaska Building and Residential CodesAlaska-ICC
ArizonaXXArizona Building and Residential CodesArizona-ICC
Arkansas1212Arkansas Building and Residential CodesArkansas-ICC
California1818California Building and Residential CodesCalifornia-ICC
City of Chicago18XCity of Chicago Building and Residential Codes 
ColoradoXXColorado Building and Residential CodesColorado-ICC
Connecticut2121Connecticut Building and Residential CodesConnecticut-ICC
DelawareXXDelaware Building and Residential CodesDelaware-ICC
District of Columbia1515District of Columbia Building and Residential CodesDistrict of Columbia-ICC
Florida1818Florida Building and Residential CodesFlorida-ICC
Georgia1818Georgia Building and Residential CodesGeorgia-ICC
Hawaii1818Hawaii Building and Residential CodesHawaii-ICC
Idaho1818Idaho Building and Residential CodesIdaho-ICC
IllinoisXXIllinois Building and Residential CodesIllinois-ICC
Indiana1218Indiana Building and Residential CodesIndiana-ICC
Iowa1515Iowa Building and Residential CodesIowa-ICC
KansasXXKansas Building and Residential CodesKansas-ICC
Kentucky1515Kentucky Building and Residential CodesKentucky-ICC
Louisiana1515Louisiana Building and Residential CodesLouisiana-ICC
Maine1515Maine Building and Residential CodesMaine-ICC
Maryland1818Maryland Building and Residential CodesMaryland-ICC
Massachusetts1515Massachusetts Building and Residential CodesMassachusetts-ICC
Michigan1518Michigan Building and Residential CodesMichigan-ICC
Minnesota1818Minnesota Building and Residential CodesMinnesota-ICC
Mississippi1818Mississippi Building and Residential CodesMississippi-ICC
Missouri12XMissouri Building and Residential CodesMissouri-ICC
Montana1818Montana Building and Residential CodesMontana-ICC
Nebraska1818Nebraska Building and Residential CodesNebraska-ICC
Nevada1818Nevada Building and Residential CodesNevada-ICC
New Hampshire1818New Hampshire Building and Residential CodesNew Hampshire-ICC
New Jersey1818New Jersey Building and Residential CodesNew Jersey-ICC
New Mexico1515New Mexico Building and Residential CodesNew Mexico-ICC
New York1818New York Building and Residential CodesNew York-ICC
New York City14XNew York City Building and Residential Codes 
North Carolina1515North Carolina Building and Residential CodesNorth Carolina-ICC
North Dakota1818North Dakota Building and Residential CodesNorth Dakota-ICC
Ohio1518Ohio Building and Residential CodesOhio-ICC
Oklahoma1818Oklahoma Building and Residential CodesOklahoma-ICC
Oregon2118Oregon Building and Residential CodesOregon-ICC
Pennsylvania1818Pennsylvania Building and Residential CodesPennsylvania-ICC
Rhode Island1515Rhode Island Building and Residential CodesRhode Island-ICC
South Carolina1818South Carolina Building and Residential CodesSouth Carolina-ICC
South Dakota18XSouth Dakota Building and Residential CodesSouth Dakota-ICC
Tennessee1218Tennessee Building and Residential CodesTennessee-ICC
Texas1212Texas Building and Residential CodesTexas-ICC
Utah1815Utah Building and Residential CodesUtah-ICC
Vermont15XVermont Building and Residential CodesVermont-ICC
Virginia1818Virginia Building and Residential CodesVirginia-ICC
Washington1818Washington Building and Residential CodesWashington-ICC
West Virginia1515West Virginia Building and Residential CodesWest Virginia-ICC
Wisconsin15XWisconsin Building and Residential CodesWisconsin-ICC
Wyoming21XWyoming Building and Residential CodesWyoming-ICC
U.S.TerritoriesIBCIRC  
American Samoa   American Samoa-ICC
Guam99 Guam-ICC
Puerto Rico1818 Puerto Rico-ICC
Northern Mariana Islands1818 Northern Mariana Islands-ICC
U.S. Virgin Islands1818 U.S. Virgin Islands-ICC