20 CSR 4240-123.080 - Code for Modular Units

PURPOSE: This rule establishes the code for modular units which entered the first stage of production after July 1, 1976 which are rented, leased, or sold or offered for rent, lease, or sale in this state.

(1) Any multiple units so designated as double wide, sectional, or modular, shall comply with HUD International Residential Code (IRC) and/or International Building Code (IBC) standards and regulations as well as state regulations and standards as set forth for modular unit construction and carry the appropriate seal or data plate.

(2) All modular units shall be built in accordance with the FHA Structural Engineering Bulletin and FHA Minimum Property standards and be eligible for long-term financing under section 203(b) of the National Housing Act, 12 U.S.C. 1701.

(3) The structure shall be manufactured in accordance with and meet the requirements of the most recently commission-adopted building codes: except as provided in subsections (A) and (B) below, International Building Code-2021; International Plumbing Code-2021; International Mechanical Code-2021; International Residential Code-2021; International Fuel Gas Code-2021; and National Electric Code NFPA 70-2020. Manufacturers will have six (6) months in which to update to the new code after the effective date of this rule as notified by the manager for all units built on or after that date. The codes are hereby incorporated by reference and made a part of this rule. The referenced codes do not include any later amendments or additions. (For a copy of the International Code publication, contact the International Code Council, Publications, 4051 West Flossmoor Road, Country Club Hills, IL 60478-5795. For a copy of the National Electric Code, contact the national Fire Protection Association, One Batterymarch Park, Quincy, Massachusetts 02169-7471.)

(A) The requirement under section R313.2 of the International Residential Code requiring one- (1-) and two- (2-) family dwellings to be constructed with an automatic fire protection system shall not be mandatory; and

(B) Effective January 1, 2011, every dealer or manufacturer who sells a modular home to be placed in Missouri shall be required to have the purchaser of such modular unit sign and date an acknowledgement that the dealer or manufacturer has offered the fire sprinkler system in conjunction with the sale of the home. Such acknowledgement shall be contained in or attached to the purchase agreement or sales contract. The acknowledgement must be signed by both the purchaser and the dealer or manufacturer or his/her legal representative. The purchaser of a modular unit is responsible for the cost of any fire sprinkler system installed in the home.

(4) This rule incorporates by reference the full text of the material listed in section (3).

(5) All modular units shall meet or exceed the Seismic Zone requirements (A, B, C, D1, D2, or E as defined in the applicable code in section (3) above) for the area in which the modular unit is placed. Modular unit plans submitted by a manufacturer under 20 CSR 4240-123.040 shall specify the Seismic Zone for which the unit is built as well as the location where the unit will be placed. If a unit is built for open placement throughout the state of Missouri, the manufacturer and the dealer or dealer's agent is responsible to ensure the unit is placed in the proper seismic area for which the unit is built.

(6) Each modular unit shall bear a data plate affixed in a permanent manner near the main electrical panel or other readily accessible and visible location. Each data plate must be covered with a material that will make it possible to clean the data plate of ordinary dirt without obscuring the information. Each data plate shall include the following information at a minimum: name and address of manufacturer, serial and model number of the unit, date the unit was manufactured, code the unit was built to, seismic zone listing, name and address of the third-party engineering agency that reviewed and approved the plans submitted by the manufacturer under 20 CSR 4240-123.040.

(7) All modular units manufactured on or after July 1, 1976, shall be set up or installed according to the manufacturer's installation manual and approved foundation plans.

(8) The manufacturer's installation manual must be approved by the third party for all field installed components and any other process relating to the assembly of the modular unit(s), and any completed unit may be subject to on-site field inspection.

Notes

20 CSR 4240-123.080

AUTHORITY: sections 700.010 and 700.040, RSMo 2016.* This rule originally filed as 4 CSR 240-123.080. Original rule filed Aug. 16, 1979, effective Dec. 15, 1979. Emergency amendment filed July 3, 1989, effective July 13, 1989, expired Nov. 9, 1989. Amended: Filed July 3, 1989, effective Nov. 1, 1989. Amended: Filed June 12, 2001, effective Jan. 30, 2002. Amended: Filed Oct. 15, 2007, effective April 30, 2008. Amended: Filed Oct. 4, 2010, effective April 30, 2011. Amended: Filed July 6, 2017, effective March 30, 2018. Moved to 20 CSR 4240-123.080, effective Aug. 28, 2019. Amended: Filed April 24, 2024, effective Nov. 30, 2024.

AUTHORITY: sections 700.010 and 700.040, RSMo 2016.* This rule originally filed as 4 CSR 240-123.080. Original rule filed Aug. 16, 1979, effective Dec. 15, 1979. Emergency amendment filed July 3, 1989, effective July 13, 1989, expired Nov. 9, 1989. Amended: Filed July 3, 1989, effective Nov. 1, 1989. Amended: Filed June 12, 2001, effective Jan. 30, 2002. Amended: Filed Oct. 15, 2007, effective April 30, 2008. Amended: Filed Oct. 4, 2010, effective April 30, 2011 . Amended: Filed July 6, 2017, effective March 30, 2018. Moved to 20 CSR 4240-123.080, effective Aug. 28, 2019. Amended by Missouri Register October 15, 2024/volume 49, Number 20, effective 11/30/2024.