Missouri Building Codes

The Missouri building codes are governed at a local jurisdiction level. Please check with your local government office to understand which codes apply to your project.

Adoption Info


The Code of Professional Conduct states that the 2018 edition of the International Building Code will be used as the evaluation criteria in determining the appropriate conduct for any professional licensed or regulated by the chapter and being evaluated under section 327.441.2(5), RSMo, if no building code is adopted by the local jurisdiction.

The following code applies to modular construction per 20 CSR 4240-123.080:

2015 International Building Code
2015 International Plumbing Code
2015 International Mechanical Code
2015 International Residential Code
2015 International Fuel Gas Code
2014 National Electrical Code

Rules of Department of Commerce and Insurance
Chapter 2—Code of Professional Conduct
Original document
Rules of Department of Commerce and Insurance
Chapter 123—Modular Unit
Original document


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Missouri Building Codes

The building codes of Missouri adopt the the International Building Code 2018 (IBC 2018), International Building Code 2015 (IBC 2015), International Residential Code 2015 (IRC 2015), International Plumbing Code 2015 (IPC 2015), International Mechanical Code 2015 (IMC 2015), International Fuel Gas Code 2015 (IFGC 2015), Building Code Requirements for Structural Concrete 2014, and the National Electrical Code, 2014.

Missouri building codes, including the fire and residential codes

Missouri Agencies

Missouri Office of Administration
Commissioner's Office
Website: http://oa.mo.gov"
Address: State Capitol Building, Room 125, Jefferson City, MO 65102-0809
P.O. Box: 809 Jefferson City, MO 65102-0809
Email: comofc@oa.mo.gov
Phone: (573) 751-1851
Fax: (573) 751-1212

Missouri Division of Professional Registration
Website: http://pr.mo.gov
Address: 3605 Missouri Boulevard, Jefferson City, MO 65102-1335
P.O. Box: 1335 Jefferson City, MO 65102-1335
Email: profreg@pr.mo.gov
Phone: 573.751.0293

Missouri Division of Fire Safety
Website: https://dfs.dps.mo.gov
Address: 205 Jefferson St., 13th Floor, Jefferson City, MO 65101-4421
Email: firesafe@dfs.dps.mo.gov
Phone: (573) 751-2930
Fax: (573) 751-5710