International Energy Conservation Code, commercial
Missouri leaves the IECC commercial to cities and counties
Missouri leaves the IECC commercial to cities and counties. Adopted by Local governments; state energy standard for state buildings set by rule under RSMo 8.812. The legal citation is RSMo 67.280; RSMo 8.812.
Record of adoption
Edition in force
Local adoption
Partial
- Legal citation
- RSMo 67.280; RSMo 8.812
- Adopted by
- Local governments; state energy standard for state buildings set by rule under RSMo 8.812
- Second reading
- Applies
- Local option
DOE’s ‘equivalent code’ 90.1-2013 is not an adopted statewide edition. OA’s designer packet carries ‘ASHRAE 90 Forms’ for state projects.
Exceptions
- State building energy design standard (BEEDS, revised October 2009) is built around the IECC and cites ASHRAE 90.1 without edition years
How Missouri adopts the IECC commercial
Cities and counties adopt energy codes by ordinance. For state buildings only, RSMo 8.812 sets the 2006 IECC (or later) as the minimum, implemented through a state standard.
Cycle. irregular; set by each local jurisdiction
Laws, rulings, and other actions
- LegislationHB 9392025 regular session
Would repeal and replace RSMo 67.280 to limit county and municipal authority over green building ordinances.
Pending (referral recorded Mar 13, 2025, per a secondary tracker)
app.legiplex.com (opens in a new tab) - LegislationSB 743, Missouri Building Codes Act2025 regular session, Sen. Brown
Would create state building, electrical, energy, fire and other codes from ICC and other model codes, require existing local codes to conform, and require commission approval of local amendments.
Pending (introduced Feb 24, 2025, per a secondary tracker)
senate.mo.gov (opens in a new tab) - Executive orderExecutive Order 09-18 (Gov. Nixon), state building energy efficiency
Requires new state construction, leased buildings and significant renovations to meet at least the most recent IECC energy efficiency standards.
- LegislationRSMo 8.812, state building energy efficiency standard (L. 1993 HB 195; amended 2008 SB 1181)
Requires a minimum energy efficiency standard for state buildings over 5,000 sq ft at least as stringent as the 2006 IECC or the latest version, for designs initiated on or after Jul 1, 2009.
Enacted 2008, effective Aug 28, 2008
revisor.mo.gov (opens in a new tab) - UndatedLegislationSB 1431, Missouri Building Codes2026 regular session, Sen. Henderson
Would establish Missouri Building Codes based on ICC and other model codes, with commission approval of local amendments and implementation by Aug 28, 2028.
Pending (introduced)
senate.mo.gov (opens in a new tab) - UndatedLegislationHB 3466, Missouri Building Codes Act2026 regular session, Rep. Hruza
Would require jurisdictions with an existing building code to adopt the state codes by rule, allow local amendments, and let local bodies adopt by reference.
Pending (introduced)
documents.house.mo.gov (opens in a new tab)
How it was checked
Partial
Researched in the state’s own record. The seal stays broken until the passage is on file word for word.
Read twice: a second, blind reading of the state’s record agreed with the first on .
The state’s record was last read on , from six source pages.
Evidence 5 sources
Sources for the record itself come first, the state’s own records ahead of others. A label marks a source about something else, such as an exception. A source marked secondary is not the state’s own record.
Codes by jurisdictionMissouri Department of Natural Resourcesdnr.mo.gov (opens in a new tab)Agency pageRetrieved About an exception
“at least as stringent as the International Energy Conservation Code 2006, or the latest version thereof”
RSMo 8.812Missouri Revisor of Statutesrevisor.mo.gov (opens in a new tab)StatuteRetrieved About an exception
State of Missouri Building Energy Efficiency Design StandardMissouri Office of Administrationoa.mo.gov (opens in a new tab)Agency pageRetrieved About the note
Designer Information PacketMissouri Office of Administrationoa.mo.gov (opens in a new tab)Agency pageRetrieved About another code
“the latest edition of codes and standards”
Design Guidelines (revisions through 06/17)Missouri Office of Administration, Facilities Managementoa.mo.gov (opens in a new tab)Agency pageRetrieved
Tracker cross-checks
Code adoption trackers are a cross-check. They are not Missouri’s own record.
About a tracker cross-check
State Profile: MissouriCross-checkUS Department of Energy, Building Energy Codes Programenergycodes.gov (opens in a new tab)Tracker, secondaryRetrieved
DOE’s energycodes.govCross-checkAgrees with the record
Current State Code: Home Rule; Equivalent Code: 90.1-2013; Enforcement: Jurisdictional
BCAP’s code status pageCross-checkAgrees with the record
No statewide energy code
Related pages
- See Missouri’s IECC commercial on the map
- IECC commercial adoption in every state
- All six codes in Missouri