The following list provides the codes that are currently in use in each jurisdiction as noted. Please note that code usage is subject to change.

MARYLAND

Allegany County
2006 IBC, IRC; 2005, 2008 NEC; 2006 NSPC; 2006 IMC

Annapolis, City Of
2012 IBC, IRC; 2008 NEC & 2008 NESC; 2009 NFPA1; 2009 NFGC; 2012 IPMC; 2012 IMC; 2009 IECC; 2009 NSPC w/2001 supplemental & local amendments

Anne Arundel County
2015 IBC, IRC; 2012 IPC; 2012 IMC; 2011 NEC; 2006 NFPA

Baltimore County
2012 IBC, IRC; 2011 NEC; 2009 NSPC; 2012 IMC

Baltimore, City Of
2015 IBC, IRC; 2014 NEC; 2015 IMC; 2015 IECC; 2015 IPC

Calvert County
2009 IBC, IRC; 2002 NEC; 2006 IPC; 2002 Fuel Gas Code

Caroline County
2009 IBC, IRC; 2008 NEC; 2006 NSPC

Carroll County
2009 IBC, IRC; 2008 NEC; 2009 NSPC; 2009 IMC

Cecil County
2009 IBC, IRC; 2008 NEC; 2006 NSPC ; 2006 IMC

Charles County
2012 IBC, IRC; 2011 NEC; 2012 IPC; 2012 IMC; 2009 NFPA 101 Life Safety/NFPA 1 Fire Code

Dorchester County
2009 IBC, IRC; 2008 NEC; 2009 IPC

Frederick County
2012 IBC, IRC; 2011 NEC; 2012 IPC; 2012 IMC; 2009 NFPA

Garrett County
2009 IBC, IRC; 2005 NEC

Harford County
2012 IBC, IRC; 2008 NEC; 2006 NSPC; 2009 IMC

Howard County
2012 IBC, IRC; 2011 NEC; 2009 NSPC; 2012 IMC; 2009 Life Safety Code

Kent County
2009 IBC, IBC; 2006 IMC

Montgomery County
2015 IBC, IRC; 2008 NEC; 2009 IFGC; 2015 IMC; WSSC PLUMBING

Prince George’s County
2015 IBC, IRC, IEBC; 2012 NFPA 101; 2002 NEC; 2015 IMC; WSSC PLUMBING

Queen Anne’s County
2012 IBC, IRC; 2011 NEC; 2006 NSPC; 2006 IMC

Somerset County
2009 IBC, IRC; 2006 NSPC & 2007 SUPPLEMENT TO 2006 NSPC; 2012 IECC; 2003 IMC

St. Mary’s County
2009 IBC, IRC; 2005 NEC

Talbot County
2012 IBC, IRC; 2003 IMC; 2008 NEC

Wicomico county
2009 IBC, IRC; 2008 NEC; 2009 NFPA1

Worcester County
2009 IBC, IRC; 2008 NEC; 2006 IMC; 2009 IECC; 2009 NFC

Washington County
2012 IBC, IRC; 2011 NEC; 2012 IMC; 2012 IPC; 2012 IECC

VIRGINIA

Arlington County
2009 IBC, IRC; 2008 NEC; 2009 IMC; 2009 IPC; 2009 IFGC

Fairfax County
2009 IBC, IRC; 2009 IMC; 2009 IPC; 2008 NEC; 2009 IFGC

Loudon County
2009 IBC, IRC; 2009 IMC; 2009 IPC; 2009 IFGC; 2008 NEC

Prince William County
2015 IBC, IRC; 2009 IMC; 2009 IPC; 2009 IFGC; 2008 NEC

DELAWARE

Kent County
2006 IBC, IRC

New Castle County
2006 IBC, IRC; 2006 IMC; 2006 IPC

Sussex County
2003 IBC, IRC