State Current Code Status IECC Status
Alabama 2003 IMC, IFGC statewide V-F appliances allowed throughout the state.  
Alaska 2003 IMC, IFGC and in some areas UMC V-F appliances allowed in various parts of state.  Adopts residential provisions of 2006 IECC November 08
Arkansas 2003 IMC, IFGC statewide V-F appliances allowed throughtout the state.  
Arizona 2000, 2003 and 2006 IMC and 2003, 2006 UMC State is adopting new codes and V-F appliances allowed in various parts of the state. Yuma is 1996 IMC. Arizona HB 2275 introduced to require statewide adoption of the IECC
California One or more International Codes® adopted statewide with future enforcement date The state does not allow vent-free appliances. The state law has been changed but regulations have not been promulgated. Energy Commission to pesent draft language for 2008 IECC
Colorado One or more International Codes® enforced within state at local level, 2006 UMC in some areas V-F appliances allowed in various parts of state.  Because of higher aaltitutdes, some code areass do not accept. Colorado HB 1146 introduced to require municipal adoptions of the IECC
Connecticut 2003 IMC statewide V-F appliances allowed throughout the state. New Committee to Develop Energy Standards for State Buildings
Delaware 2000 - 2003 IPC and IMC V-F appliances allowed throughout the state.  
D.C. 2000 IMC V-F appliances allowed but not in bedrooms and bathrooms DC Green Building Act passed City Council and considering 2006 IECC requirements
Florida 2003 IMC statewide V-F appliances allowed in most parts of the state. Some ventilation requirements are in effect. Automated Energy Code Compliance System
Georgia 2006 IMC statewide V-F appliances allowed throughout the state. New amendment to 2000 IECC in effect, task formed to review 2006 IECC
Hawaii One or more International Codes® adopted statewide with future enforcement date and UMC in some areas V-F appliances allowed throughout the state.  
Idaho 2003 IMC statewide and UMC in some localities This state was an UMC state but is now a mixed state and vent-free appliances are allowed in most areas of state. 2006 IECC expected for 2008
Illinois 2000 IECC throughout the state, 2000 - 2003 IMC Some cities do not allow V-F, City of  Elgin does not allow for vent-free appliances 2006 IECC to become effective for State Commerical Buildings
Indiana ICC Statewide V-F appliances allowed throughout the state.  
Iowa 2003 ICC Statewide V-F appliances allowed throughout the state.  
Kansas 2000 and 2003 ICC There are some cities that do not allow.    
Kentucky 2000 ICC and 2003 IECC State is under different codes but V-F products allowed Considering adoption of 2006 IECC
Louisiana 2000 and 2003 ICC and 2003 IECC in some areas   2006 IRC takes effect
Maine 2003 ICC Statewide    
Maryland 2003 and 2006 ICC and 2003 IECC in some areas Permission to use VF units in Baltimore from Housing Dept.  
Massachusetts One or more ICC codes and UMC V-F products allowed with permits from Plumbers and Fire Departments. Not allowed in bedrooms and bathrooms.  
Michigan 2000, 2003 and 2006 IMC V-F products allowed in various areas of state.  
Mississippi One or more ICC codes accepted in state    
Minnesota The state uses the IECC but disallows VF in cities over 2,500 populations    
Missouri 2003 and 2006 ICC     
Montana The state has adopted the ICC and UMC Officials are confused as to the use of V-F appliances Hearing on the 2006 IECC in dec 2006 or ealy 2007
Nebraska 2003 ICC Statewide Not allowed in Fremont.  
New Hampshire 2000 ICC but not in all cities Manchester, NH does not allow V-F appliances  
New Jersey 2006 ICC statewide V-F products allwed throughout the state 2006 I-Codes to be adopted in February 2007
New Mexico 2003 ICC and UMC codes V-F products allowed only for propane use  
New York 2000 ICC statewide  V-F products not allowed in NYC Proposals for code updates to be published for comments
Nevada Adopting 2006 ICC and UMC The state is adopting the codes and most cities will allow for V-F use in 2007 NV regions review 2006 IECC
North Carolina 2003 ICC statewide V-F not allowed in basements  
North Dakota 2000 ICC Codes and UMC V-F allowed in some areas of the state   
Ohio 2003 ICC Codes  V-F not allowed in Stark County Adopts 2006 IECC
Oklahoma 2003 ICC Codes  V-F products allowed throughout the state  
Oregon 2003 ICC Codes  V-F products allowed throughout the state  
Pennsylvania 2006 ICC Codes V-F products allowed throughout the state Approval of 2006 IECC expected soon
Rhode Island 2003 ICC Codes  V-F products allowed throughout the state  
South Carolina 2003 ICC Codes  V-F products allowed throughout the state 2006 IECC to be implemented in July 2008
South Dakota 2003 ICC Codes  V-F products allowed in some areas of the state depending on the recognized code  
Tennessee One or more International Codes enforced throguhout state V-F products allowed throughout the state  
Texas 2000 ICC Codes Products not allowed in Austin and Houston  
Utah 2003 ICC and 2003 IECC V-F products allowed in proper altitudes 2006 IECC effective in Utah
Vermont 2003 ICC V-F products allowed in most areas of the state 2005 Vermont Guidelines for Energy Efficient Commeercial Construction to become effective
Virginia 2003 ICC V-F products allowed throughout the state  
Washington 2006 IMC and UMC V-F products allowed in some areas of the state depending on the recognized code 2006 Washington State Energy Code will be published soon
West Virginia 2000 IMC V-F products allowed throughout the state  
Wisconisin IMC Statewide V-F products allowed in homes built prior to 1980 Review of 2006 IECC with Wisconsin Amendments
Wyoming IMC and UMC V-F products allowed in some areas of the state depending on the recognized code