Missouri

Current Codes

Missouri Minimum Energy Efficiency Standards for State Buildings

Code Type: Public Buildings

Based on: 2006 IECC Mandatory

Date Effective: Wednesday, July 1, 2009

Date Passed: Thursday, July 10, 2008

Missouri: NO STATEWIDE ENERGY CODE

Code Type: Residential, Commercial

Based on: NO STATEWIDE CODE Not Mandatory

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Additional Code Information

Code Adoption & Change Process

Code Change Process:

Legislative: In Missouri, only the General Assembly is authorized to enact legislation to establish statewide building construction regulations and/or authorize a state agency to do so. However, there currently is no state regulatory agency authorized to promulgate, adopt, or update construction codes on a statewide basis.

Code Change Cycle:

No set schedule. The most recent update to Missouri's energy code for state-owned buildings became effective on July 1, 2009.

Next Code Update:

There is no pending state energy code update.

History

Missouri has no mandatory or voluntary statewide energy code for private residential and commercial construction.

After the passage of SB 1181 in July 2008, all state-owned buildings must comply with Missouri Minimum Energy Efficiency Standard for Public Buildings, which is based on the 2006 IECC, beginning on July 1, 2009. The previous state-owned building code was based on ASHRAE 90.1-1989.

Due to its history of strong local government, Missouri does not have a mandatory statewide energy code. However, however all local jurisdictions except class III counties have the right to adopt an energy code. As expected, this system creates a sometimes confusing patchwork of different codes throughout the state. See this page or see below for more details on local adoption.

Regardless of the system in place, the bottom line is that many jurisdictions in Missouri still don’t have an energy code—meaning that many residents do not receive the benefits of energy-efficient construction.

Missouri has considered adopting a state code previously. For example, SB 745, drafted by BCAP in 2010, would have adopted the 2009 IECC and ASHRAE Standard 90.1-2007 statewide. It also would have directed DNR to establish an automatic review cycle, either every three years or within nine months of the publication of a new model code version. In addition, HB 938 in 2011 would have established most of the 2006 International Code series as minimum statewide construction standards (the 2006 IECC was not specifically cited, but would have been included via its position as an alternative compliance path to Chapter 11 of the 2006 International Residential Code). Both bills, however, failed to move past the committee stage.

Local Adoption: For more, view the BCAP Missouri Gap Analysis Report, starting with pages 19-22.

All local jurisdictions except class III counties have the right to adopt an energy code. As expected, this system creates a sometimes confusing patchwork of different codes throughout the state.

It is typical for Missouri communities to adopt codes on a 6-year cycle rather than the 3-year code development cycle for ICC. It is also typical for communities to follow the code adoption of surrounding communities. These adoption practices have developed two trends in Missouri; eastern Missouri communities are generally on the 2003 I-Codes and are moving/have moved to the 2009 I-Codes and western Missouri communities are generally on the 2006 I-Codes and are moving to the 2012 I-Codes.

On Nov. 7, 2012, The City of Hazelwood in St. Louis County adopted the 2009 IECC and the 2009 IRC (previously on the 2003 I-codes). It has been adopted with a single amendment of the basement insulation requirements only applying if there is 4 ft or more of above-ground exposure.

Basic Facts

Climate Zone:

4A, 5A (zones based on DOE's most recent zoning: zone numbers based on a spectrum, zone 1 represents very hot weather and zone 8 represents subarctic weather. Letters indicate climate type, A-Humid, B-Dry, C-Marine)

Population:

5,987,580 (2009, U.S. Census Bureau)

Construction Activity:

New Housing Units Authorized by Permit:
Total units: 13,273
Number of Housing Units by Structure Type:
1 unit: 7,777
2 units: 654
3 and 4 units: 854
5 or more units: 3,988
(2008, Real Estate Center)

Projected Construction Rate:

7,782 dwelling units (-48% less than the previous year), maintaining an average value of $187,000 per dwelling unit.
(2008, Real Estate Center)

CO2 Emissions:

140.04 MMT CO₂ (2007)

Energy Data

Primary Energy Source:

Coal: 41% (2007, EIA)

Energy Consumption:

Total Annual Energy Consumption of 1,964.1trillion Btu (2007, EIA)

Energy Expenditures:

23,341.8 Million Nominal Dollars (2007, EIA)

Energy Snapshot:

58% of the state’s natural gas supply is used for heating the home.

Natural gas is the largest consumed source of energy for the state’s residential sector

Residential use of natural gas in Missouri costs up to $12.97/thousand cu ft.

Source: EIA

Climate Concerns

Regional Issues & State Action:

According to the United States Global Change Research Program, the Midwest has experienced rising average temperatures with the largest warming seen in the winter months. The growing season has been extended by one week because of earlier last spring frosts and precipitation has become more frequent including increased instances of heavy downpours. Since the 1980s, large heat waves have become more frequent than any time in the last century. These effects of climate change are predicted to continue, threatening the region’s economy, landscape, character, and quality of life.

Missouri does not have an official climate action plan but the State Environmental Improvement and Energy Resources Authority makes efforts to promote energy efficiency and renewable energy, which are administered through the Division of Energy.

BCAP Estimated Energy Savings

If Missouri began implementing the 2009 IECC and Standard 90.1-2007 statewide in 2011, businesses and homeowners would save an estimated $99 million annually by 2020 and $200 million annually by 2030 in energy costs (assuming 2006 prices).

Additionally, implementing the latest model codes would help avoid about 31 trillion Btu of primary annual energy use by 2030 and annual emissions of more than 2.1 million metric tons of CO₂ by 2030.

A 2010 BCAP analysis indicates that the weighted average incremental construction cost of upgrading to the 2009 IECC in Missouri would be $875.28 per home. On average, the annual energy savings per home would be $459.00, meaning the simple payback for homeowners would occur, on average, in 1.91 years. These estimates are conservative and represent the upper bound on incremental cost.

Resources

2012 IECC Incremental Cost Payback: Kansas City, Missouri

posted by Mark Lessans
Kansas City 2012 IECC Incremental Cost Memo

posted by Mark Lessans
Missouri Gap Analysis Report

posted by Eric Plunkett
Why Energy Codes Matter for Missouri

posted by Eric Plunkett
Homeowners Energy Code Guide: Missouri

posted by Eric Plunkett

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Advocacy Opportunities	Status	Explanations
Adopt Mandatory Codes		Residential Missouri is a home rule state and adoption of codes occurs at the local level. State-owned single-family and multi-family residential buildings must comply with the latest edition of the MEC or ANSI/ASHRAE Standard 90.2-1993. Commercial Missouri does not have a mandatory statewide commercial energy code. State-owned buildings must comply with the 2006 IECC.
Adopt an Automatic Review & Update Process		The Missouri General Assembly does not have a set schedule for code updates. The most recent update occurred on January 26, 1996.
Create a Regulatory Process		The promulgation of a statewide energy code must proceed through the state legislature.
Improve Compliance		Residential Compliance for state-funded buildings is demonstrated through plan review and inspections by the Missouri Office of Administration, Division of Design and Construction. Compliance at the local level is through plan review and inspection by local building officials. Commercial Compliance for state-funded buildings is demonstrated through plan review and inspections by the Missouri Office of Administration, Division of Design and Construction. Compliance at the local level is through plan review and inspection by local building officials.
Eliminate Weakening Amendments
Add Strengthening Amendments
Allow Innovation at the Local Level		The Missouri General Assembly passed a bill that would allow the County Commission of any county to adopt a building code subject to voter approval. Two counties, Clay (Kansas City metro area) and Jefferson (St. Louis metro area), are authorized to adopt building and construction regulations without voter approval.
Set Milestones
Adopt Green Codes		City Wide Program: Clayton, Missouri. Municipal Building Standards, 2006 Program Description: New construction and major renovations of City-owned, occupied, or funded buildings over 5,000 ft2 must earn LEED Silver certification. Energy Standard: Commercial LEED Certification: below is summarized from LEED NC, details vary according to certification program. Mandatory: minimum 10% compliance beyond ASHRAE 90.1-2007, or use of NBI's Core Performance or one of ASHRAE's Advanced Energy Design Guidelines. LEED options include: optimize energy performance, on-site renewable energy, enhanced commissioning, enhanced refrigerant management, measurement & verification, and green power. City Wide Program: Kansas City, Missouri. Municipal Building Standards, 2004 Program Description: New municipal buildings or major renovations 5,000 ft2 or larger must meet LEED Silver level. Energy Standard: Commercial LEED Certification: below is summarized from LEED NC, details vary according to certification program. Mandatory: minimum 10% compliance beyond ASHRAE 90.1-2007, or use of NBI's Core Performance or one of ASHRAE's Advanced Energy Design Guidelines. LEED options include: optimize energy performance, on-site renewable energy, enhanced commissioning, enhanced refrigerant management, measurement & verification, and green power. City Wide Program: St. Louis, Missouri. The Rockland county governmental green building act, 2008 Program Description: New municipal buildings or major renovations 5,000 ft2 or larger must attain LEED Silver certification. Energy Standard: Commercial LEED Certification: below is summarized from LEED NC, details vary according to certification program. Mandatory: minimum 10% compliance beyond ASHRAE 90.1-2007, or use of NBI's Core Performance or one of ASHRAE's Advanced Energy Design Guidelines. LEED options include: optimize energy performance, on-site renewable energy, enhanced commissioning, enhanced refrigerant management, measurement & verification, and green power. City Wide Program: Springfield, Missouri. Green Building Policy, 2008 Program Description: All city-owned new construction projects “of any size and intended for human occupation” must earn LEED Silver certification, further specifying that buildings earn: seven (7) points in EAc1, optimize energy performance; two (2) points in the water efficiency category; one (1) point in MRc2, Construction waste management; and one (1) point in EAc5, Measurement & verification. Buildings not intended for human occupation are required by this policy to incorporate LEED to the greatest extent practicable. The City of Springfield Green Building Policy also requires renovations of city-owned buildings to incorporate LEED for Existing Buildings to the greatest extent practicable, calling for ENERGY STAR appliances wherever possible. Energy Standard: Commercial LEED Certification: below is summarized from LEED NC, details vary according to certification program. Mandatory: minimum 10% compliance beyond ASHRAE 90.1-2007, or use of NBI's Core Performance or one of ASHRAE's Advanced Energy Design Guidelines. LEED options include: optimize energy performance, on-site renewable energy, enhanced commissioning, enhanced refrigerant management, measurement & verification, and green power.

August 2009

Resources:

ICLEI - international association of local governments and their associations
www.iclei.org
Missouri has five local government members:
Columbia, Creve Coeur, Kansas, Olivetti, and St. Louis.

Mayors Climate Protection Center
www.usmayors.org
Twenty-one Missouri Mayors have signed The U.S. Conference of Mayors’ Climate Protection Agreement:
(City)
Clayton, Columbia, Creve Coeur, Florissant, Gladstone, Houston Lake, Kansas City, Kirkwood, Lake Saint Louis, Liberty, Maplewood, North Kansas, Overland, Parkville, Pleasant Valley, Raytown, Riverside, St. Louis, St. Peters, Sunset Hills, and University City.

International Codes Council (ICC) Regional Support and State Offices:
Ms. Kathy Slawinski
ICC Chicago District Office
4051 West Flossmoor Road
Country Club Hills, IL 60478
Phone: 1-888-422-7233, Ext. 4319
KSlawinski@iccsafe.org

Mr. Bob Neale
Regional Manager, State & Local Government Relations
4051 W. Flossmoor Road
Country Club Hills, IL 60478
Phone: 1-888-422-7233, Ext. 4264
BNeale@iccsafe.org

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