Building Codes and Standards

Mobile homes and mountains

The Division of Housing’s Building Codes & Standards (BCS) Section protects Colorado citizens by regulating diverse and unique aspects of the state’s residential and nonresidential construction industry in partnership with local governments, the federal government, other state agencies, and the private sector. Specifically, the BCS regulates the:

1. Construction of factory-built structures at on offsite location (closed construction including electrical, mechanical, or plumbing components) to be installed or completed onsite in Colorado (both residential and nonresidential);
2. Sales (sellers, dealers, retailers) of manufactured homes (pre-1976 mobile homes, homes manufactured to the federal standards, modular homes) in Colorado through advertising or sales activities, including those with a retail location outside of Colorado;
3. Installation of manufactured homes (pre-1976 mobile homes, homes manufactured to the federal standards, modular homes) in our state, which means the placement of a manufactured home on a permanent or temporary foundation system, and includes supporting, blocking, leveling, securing and anchoring of the home and connecting multiple or expandable sections of the home;
4. Construction of all site built hotels, motels, and multi-family structures in any local jurisdiction that does not have a building department; and
5. Accessible housing standards for factory-built residential structures and residential projects in any political subdivision that does not have a local building code, where the residential structures/projects are designed to serve persons with nonambulatory disabilities, semiambulatory disabilities, sight disabilities, hearing disabilities, disabilities of incoordination, and aging.  

The BCS registers/certifies manufacturers, sellers, installers, and independent installation inspectors. By law, it must review and approve design/construction plans of factory-built structures (both residential and nonresidential) prior to construction, and certify a factory-built structure once it has passed inspections. The BCS also inspects and certifies the installation of manufactured homes before occupancy.

A home owner may submit concerns regarding the construction, sale, or installation of his/her manufactured home to the BCS for investigation through its dispute resolution process. 

Laws, Rules & Policies

Administrative Rules 

A rulemaking hearing on Proposed Amended Rules is scheduled to start at 12:15 PM on Tuesday, July 13, 2021, before the State Housing Board. Below are the details for participating in the rulemaking hearing.

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You are invited and encouraged to submit written testimony for consideration prior to the rulemaking hearing by directing your written testimony to the State Housing Board and sending an email with the subject Written Testimony - July 13th Rulemaking Hearing to maulid.miskell@state.co.us by 5:00 PM on Monday, June 28, 2021. Your written testimony will be entered into the record upon receipt and presented to the State Housing Board for its consideration prior to the rulemaking hearing. 

You are also welcome to participate during the rulemaking hearing itself by providing verbal testimony or written testimony for the State Housing Board's consideration through the link below. You may utilize the form up until the rulemaking hearing starts at 12:15 PM on Tuesday, July 13th. 

Click Here to Sign-up for Public Testimony

Here is a link to House Bill 21-1019 concerning modifications to the regulations of factory-built structures. This bill is the primary driver for the proposed amended rules. However, there are some other items we are also addressing during this opportunity. The Basis and Purpose for the rulemaking hearing lists those items. 

Construction

State law dictates that modular construction comply with local jurisdiction requirements concerning building energy codes. The Colorado Energy Office tracks energy code requirements for local building departments throughout the state. Access that information here.

Factory-built (offsite)

Modular

Residential
2021 Spec Cover sheet
DOH Independent Plan Review Application 2020
DOH Factory Registration Procedures 04-21
DOH Performance Criteria for Factory-Built Plan Review and Approval 10-14
DOH Alternate Construction AC Inspection Procedures 04-21
DOH Factory-built Plant Quality Control Systems Procedure 1-13
DOH IPIA Plant Quality Control Systems Procedure 11-04
DOH Criteria for Monitoring Manufacturers & Third Party Inspection Agencies 4-21
DOH Example of Quality Assurance Manual 01-19
DOH Wind-Snow Load Requirements letter 12-12
DOH Factory-Built Quality Assurance Manual Checklist 04-21
DOH AC Notice Blank Form 2021
DOH Factory-Built Residential Plan Submission Checklist 2021
DOH Residential (IRC) Installation Manual Submittal Checklist 2020
DOH 3rd Party Renewal 4-21
DOH Coversheet for QA Manual - New & Renewal
Tiny Homes Guidance

Nonresidential 
2021 Spec Cover sheet
DOH Independent Plan Review Application 2020
DOH Factory Registration Procedures  04-21
DOH Performance Criteria for Factory-Built Plan Review and Approval 10-14
DOH Alternate Construction AC Inspection Procedures 2021
DOH Factory-built Plant Quality Control Systems Procedure 1-13
DOH Criteria for Monitoring Manufacturers & Third Party Inspection Agencies 04-21
DOH Factory-built Modification Procedures 2-16
DOH Example of Quality Assurance Manual 01-19
DOH Wind-Snow Load Requirements letter 12-12
DOH Factory-Built Quality Assurance Manual Checklist 04-21
DOH AC Notice Blank Form 2021
DOH Factory-Built Non-Residential Plan Submission Checklist 2021
DOH 3rd Party Renewal 4-21
DOH Coversheet for QA Manual - New & Renewal

Federal (HUD)

Manufactured Homes Built to the Federal Standards

 

Stick-built (onsite)

Limited to jurisdictions that do not have a building department

Hotels, Motels, Multi-family

Sales

Manufactured Homes

DOH Seller Application - New & Renewal

Document Portal (For Insurance and Bond Companies Only)

 

Installations

Factory - Built Residential Structures

Manufactured Housing Installation Program Inspection Procedures for Participating Jurisdictions 2-20

DOH MHIP Handbook

DOH MHIP Inspector Registration Packet 2-20

DOH MHIP Installer Registration Packet 2-20

Document Portal (For Insurance and Bond Companies Only)

DOH MHIP Certified Installer Application 2-20

MHIP Inspector's Exam

MHIP Installer's Exam

Manufactured Homes Built to Federal Standards

DOH MHIP PJ Procedures 9-13

DOH MHIP Handbook

DOH MHIP Inspector Registration Packet 2-20

DOH MHIP Installer Registration Packet 2-20

Document Portal (For Insurance and Bond Companies Only)

DOH MHIP Certified Installer Application 2-20

MHIP Inspector's Exam

MHIP Installer's Exam

Pre-1976 Mobile Homes

DOH MHIP PJ Procedures 9-13

DOH MHIP Handbook

DOH MHIP Inspector Registration Packet 2-20

DOH MHIP Installer Registration Packet 2-20

Document Portal (For Insurance and Bond Companies Only)

DOH MHIP Certified Installer Application 2-20

MHIP Inspector's Exam

MHIP Installer's Exam

 

Manufactured Homes Impacted by 2013 Flood

Boulder Flood Lists

Weld Flood Lists