Missouri
Missouri Department of Public Safety
Office of the State Fire Marshal
Adopted I-Codes:
2018 International Building Code (IBC)
2015 International Residential Code (IRC)
2009 International Existing Building Code (IEBC) unless more recent edition adopted locally
Applicability (statewide, local, limited): LIMITED
Although most relevant building codes are adopted locally, the state adopts codes for state owned buildings. The Architecture Practice Act in Missouri directs architects to design to the 2009 International Building Code. There is no legislation in place, but many local jurisdictions typically adopt new codes on a 6-year cycle.
Notes:
Page last updated: March 2026