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| Alabama | October 1, 2012 | Alabama Energy and Residential Codes (AERC) Board voted to adopt the 2009 International Residential Code (IRC) | Detached one- and two-family dwellings and townhouses not more than three stories. |
| Alaska | January 1, 2005 | Chapter No. 60, SLA 2004 House Bill 351 (JUD) AS 18.70.095 | New and existing dwellings. |
| Arkansas | January 1, 2012 | HB 1385, Act 146 | New dwellings. |
| California | January 1, 2011 | Section R315 of the 2010 edition California
Residential Code (CRC) | New one- and two-family dwellings and townhouses not more than 3 stories. Where work requiring a permit occurs in existing dwellings |
| January 1, 2011 | Section 420 of the 2010 edition California
Building Code (CBC) | New commercial buildings (Group I-1, R-1, R-2 and R-3) . Where a permit is required for alterations, repairs or additions exceeding $1,000 |
Existing single-family homes – July 1, 2011 Existing multi-family leased or rental dwellings – January 1, 2013 | Senate Bill (SB) 183: Carbon Monoxide Poisoning Prevention Act | Single-family homes , Multi-family, leased or rental dwelling |
| Colorado | July 1, 2009 | House Bill 09-1091 | New and existing dwellings. |
Connecticut | October 1, 2005 | Substitute House Bill No. 6894
Public Act No. 05-161 | New dwellings. |
| Florida | 509.211: July 1, 2007
553.885: July 1, 2008 | Fla. Stat. §509.211
Fla. Stat. §553.885 | 509.211: New commercial buildings |
| Georgia | January 1, 2009 | Georgia State Amendments to the International
Residential Code (IRC) for One- and Two- Family
Dwellings (2006 Edition); Section R313. | New one-and two-family homes and town homes (dwellings) of three stories or less. |
Idaho | January 1, 2011 | Idaho Administrative Code IDAPA 07.03.01 | Detached one- and two-family dwellings and townhouses not more than three stories within which fuel-fired appliances are installed and in dwelling units with attached garages. |
Illinois | January 1, 2007 | Public Act 094-0741
House Bill 5284 | New and existing single- and multi-family dwellings with a fuel-burning appliance. Dwellings without a fuel-burning appliance or an attached garage are not required to have a CO detector. |
Iowa | January 1, 2010 | 661-301.8 (103A) | Detached one- and two-family dwellings and townhouses not more than three stories within which fuel-fired appliances are installed and in dwelling units with attached garages |
| Kentucky | June 1, 2011 | The Kentucky Department of Housing, Buildings and Construction updated the 2007 Residential and Building Code to require CO detection in newly constructed oneand
two-family dwellings, townhomes not more than 3 stories, apartment buildings, dormitories, adult/child care facilities and assisted living facilities which contain a fuel-burning-appliance or an attached garage. | Newly constructed one- and two-family dwellings, townhomes not more than 3
stories, apartment buildings, dormitories, adult/child care facilities and assisted
living facilities which contain a fuel-burning-appliance or an attached garage.
Detector Placement:
Outside of each sleeping area in the immediate vicinity of all bedrooms in the
dwelling |
| Louisiana | January 1, 201 | 2009 International Residential Code (IRC) | Newly constructed one- and two-family dwellings, townhomes less than 3 stories |
Maine | October 31, 2009 | Public Law, Chapter 162 LD 550 | Single-family dwellings and multi-apartment buildings sold or newly constructed. |
Maryland | January 1, 2008 | House Bill 401 | New single-and multi-family dwellings and non-
dwellings, including hotels, motels, and dormitories. |
Massachusetts | March 31, 2006
(battery-powered)
January 1, 2007 (hardwired) | Chapter 123 of the Acts of 2005 | New and existing single- and multi-family dwellings, boarding houses, hotels, motels, dorms, apartments, and adult and child care facilities. |
Michigan | HB 4730: December 23, 2008
HB 5341: March 23, 2009 | Act 376: House Bill 4730
Act 377: House Bill 5341 | HB 4730: New non-dwelling structures such as boarding houses, hotels, and motels. HB 5341: New and existing single-and multi-family dwellings. |
Minnesota | January 1, 2007 (new dwellings)
August 1, 2009 (existing dwellings) | 299F.51 | New and existing single and multi-family dwellings. |
Montana | October 1, 2009 | Senate Bill 161 | New and existing dwellings. |
New Hampshire | January 1, 2010 | House Bill 120-FN-Local | Single-family dwellings and multi-apartment buildings substantially rehabilitated or newly constructed. |
| New Mexico | Effective Date:
July 1, 2011 | Code that applies is the 2009 edition of the International Residential Code (IRC) | Detached one and two family dwellings and townhouses not more than three stories with a fuel burning appliance or an attached garage.
Detector Placement Installed outside of each separate sleeping area in the immediate vicinity of the bedrooms in dwelling units. |
New Jersey | April 16, 2003 | Chapter 44 amending and supplementing:
Public Law 1975, Chapter 217
Public Law 1999, Chapter 15 | Existing single- and two-family homes. |
New York | Effective March 6, 2003 | Uniform Fire Prevention and Building Code
Section 1225.2 Title 19 | One, two and multiple family dwellings that are newly constructed or offered for sale. |
Effective December 28, 2010 | Residential Code New York State (RCNYS) | Detached one- and two-family dwellings and townhouses not more than three stories. |
Effective December 28, 2010 | Fire Code New York State (FCNYS) | E, I-1, I-2 (except hospitals), I-4, R-1, R-2, R-3 or R-4. Several examples include but are not limited to hotels, apartment buildings, dormitories, adult/child care facilities, assisted living facilities, alcohol/drug centers, convalescent facilities and daycare facilities. |
North Carolina | January 1, 2010 | Session Law 2008-219
Senate Bill 1924 | Residential rental properties. |
North Dakota | January 1, 2011 | R315 of the 2009 edition of the International
Residential Code (IRC) | Detached one- and two-family dwellings and townhouses not more than three stories |
| Ohio | Jan. 1, 2013 | | Single and up to 3 stories in multiple family |
Oklahoma | May 25, 2000 | Oklahoma Administrative Code (OAC) 340:110-3-97 | Child daycare facilities. |
Oregon | April 1, 2011 | House Bill 3450 | New and existing one, two, and multi-family dwellings, rental dwellings and Group R occupancies (hotels, motel, dormitories and other structures where humans sleep) having a CO source. |
| Pennsylvania | December 31, 2009 | 2009 I-codes issued by the ICC. See the 2009
IRC Section R315 for more info. | Detached one and two family dwellings and townhouses not more than 3 stories. |
| Rhode Island | January 1, 2002 | Fire Safety Code General Provisions
23-28.1-2 | New and existing dwellings such as (hotels, motels, dormitories, etc.). |
| South Carolina | January 1, 2011 | The South Carolina Building Codes Council
(SCBCC) adopted the 2009 edition of the IRC | New one and two-family dwellings and townhouses not more than 3 stories. |
| Texas | January 1, 2004 | Texas Human Resources Code - Section 42.060 | Child daycare facilities |
| Tennessee | June 20, 2006 | Tennessee Code Annotated, Sect. 71-3-502 | Child daycare facilities. |
Utah | July 1, 2008 | Utah Administrative Code R156-56-801 (26)Utah Administrative Code R156-56-802 (16 | R156-56-801: R2, R3, R4, I1 buildings.
R156-56-802: One and two-family dwellings. |
Vermont | July 1, 2005 | H. 243 No. 19 Chapter 77 | New and existing (upon sale) dwellings and public
buildings where people don’t sleep. |
Virginia | March 1, 2011 | Adopted the 2009 edition of the International Residential Code (IRC). | New in detached one and two family dwellings, townhouses (section R315) and Group-R occupancies (section 908.7) such as hotels, dormitories and apartment buildings containing fuel-fired appliances or with attached garages. |
Washington | July 1, 2010 | Substitute Senate Bill 5561 | New dwellings (exempts owners from having to install CO alarms in existing homes, except when offered for sale). |
West Virginia | July 1, 1998 | West Virginia Code Section 29-3-16a | New dwellings with a fuel-burning appliance and existing buildings connected to newly built buildings with a fuel- burning appliance. |
| Wisconsin | October 1, 2008 (new)
April 1, 2010 (existing) | 2007 Wisconsin Act 205 | Hotels, tourist rooming houses, apartment buildings, dormitories, jails and bed & breakfast (any public building used for lodging). Hospitals and nursing homes are not included. |
| February 1, 2011 | 2009 Wisconsin Act 158 | One - and two -family dwellings. |
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