Section 880.10 Definitions

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Illinois Administrative Code › Title 77 PUBLIC HEALTH › CHAPTER I: DEPARTMENT OF PUBLIC HEALTH › Part 880 ILLINOIS MODULAR DWELLINGS AND MOBILE STRUCTURES CODE › Section 880.10 Definitions

This text was captured on Aug 14, 2026. It is a snapshot, not a live feed, so check the official code before relying on it.

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Section 880

Section 880.10  Definitions

"Act" means the Illinois Manufactured Housing and

Mobile Home Safety Act [430 ILCS 115].

"Alteration" means the replacement, modification,

or removal of any system or installations that may affect the structural,

plumbing, electrical or mechanical system or the functioning of those elements

of units subject to the Act, but does not mean the replacement of free-standing

appliances requiring plug-in to an electrical receptacle.

"Approved Inspection Agency" means any person,

firm, corporation, unit of government or employee thereof that is authorized  by

the Department to perform inspections or evaluation services.

"Building

System" means the method of constructing a type of modular dwelling or

mobile structure described by plans, specifications, and other documentation

that together establish a set of criteria meeting the building codes, standards,

and other requirements of this Part for that type of building or building

components, which may include structural, electrical, mechanical, plumbing and

fire protection systems and other systems affecting health and safety.

"Department"

means the Illinois Department of Public Health.

"Licensed Architect" means

a person who is licensed under

the laws of this State to practice architecture

. [225 ILCS 305/5]

"Manufactured Home"

means a structure that is transportable in one or more sections that, in the

traveling mode, is 8 body feet or more in width or 40 body feet or more in

length or, when erected on site, is 320 or more square feet; that is built on a

permanent chassis and designed to be used as a dwelling with or without a

permanent foundation when connected to the required utilities; and that

includes the plumbing, heating, air-conditioning, and electrical systems

contained in the structure.  These units previously were known as "mobile

homes".  The construction of these units is regulated by the federal

Department of Housing and Urban Development

chassis and designed to be used as a dwelling with or without a

permanent foundation when connected to the required utilities; and that

includes the plumbing, heating, air-conditioning, and electrical systems

contained in the structure.  These units previously were known as "mobile

homes".  The construction of these units is regulated by the federal

Department of Housing and Urban Development.

"Manufactured Housing" or "Manufactured

Housing Unit" means a building assembly, or system of building

sub-assemblies, designed for habitation as a dwelling for one or more persons,

including the necessary electrical, plumbing, heating, ventilating, and other

service systems that is of closed or open construction and is made or assembled

by a manufacturer, on or off the building site, for installation, or assembly

and installation, on the building site with a permanent foundation.

(Section 2(i) of the Act)  This term shall include modular dwellings.

"Mobile

Home" means a movable or portable unit that is 8 body feet or more in

width and 32 body feet or more in length, constructed to be towed on its own

chassis (comprised of frame and wheels) from the place of construction to

the location or subsequent locations, subject to the provisions of Chapter 15

,

Article I (Size, Weight, and Load)

of the Illinois Vehicle Code

[625

ILCS 5/Ch. 15, Art. I]

, and designed to be used without a permanent

foundation and connected to utilities for year round occupancy with or without

a permanent foundation.  The term shall include units containing parts that may

be folded, collapsed, or telescoped when being towed and that may be expanded

to provide additional cubic capacity, and units composed of two or more

separately towable components designed to be joined into one integral unit

capable of being separated again into the components for repeated towing

y with or without

a permanent foundation.  The term shall include units containing parts that may

be folded, collapsed, or telescoped when being towed and that may be expanded

to provide additional cubic capacity, and units composed of two or more

separately towable components designed to be joined into one integral unit

capable of being separated again into the components for repeated towing.  The

term shall include

mobile structures

designed to be used for

residential, commercial, educational or industrial purposes, excluding,

however, recreational vehicles

. (Section 2(a) of the Act)

"Mobile Structures" means those units defined in

the Act as "mobile homes".  The term shall include units designed for

the purpose of housing more than one family, commercial units, industrial units

and educational units. Manufactured homes that are single family units

constructed in accordance with the Federal Manufactured Home Construction and

Safety Standard (42 USC 5401) are not considered "mobile structures".

These units are identified by a red emblem at the tailgate end of each unit.

"Model" means a specific floor plan of a unit that

is to be constructed.

"Model Code Organization" means the International

Code Council (ICC) or one of the three organizations that compose the International

Code Council.  These include the Building Officials and Code Administrators

International, Inc. (BOCA), the Southern Building Code Congress International

(SBCC) and the International Conference of Building Officials (ICBO).

"Model Group" means a series of models having the

same structural components.  Configurations such as two story, L-shaped and

bi-level shall constitute separate model groups.  Each different width of the

above-listed configurations constitutes a different model group.

"Modular

Dwellings" means those units defined in the Act as "manufactured

housing" or "manufactured housing units"

als (ICBO).

"Model Group" means a series of models having the

same structural components.  Configurations such as two story, L-shaped and

bi-level shall constitute separate model groups.  Each different width of the

above-listed configurations constitutes a different model group.

"Modular

Dwellings" means those units defined in the Act as "manufactured

housing" or "manufactured housing units".  This term shall

include both sectional and panelized structures and shall include individual

rooms that meet this criteria.  Apartments, condominiums, and hotel and motel

units shall be included as modular dwellings.

"Multiple

Family Dwelling Unit" means a building or portion of a building containing

more than two dwelling units.

"Professional Engineer" means a person licensed under the

laws of the State of Illinois to practice professional engineering.

[225

ILCS 325/4]

"Testing Agency" means an organization determined

by the Department to be qualified by reason of facilities, personnel,

experience, demonstrated reliability and independence of judgment to observe

experimental testing in accordance with prescribed standards contained within

the adopted codes in Section 880.15 of this Part and prepares a report with the

result of the test.

"Variation to an Approved Model "  means a change

to the design of an approved model of one or more of the following types:

The extension or reduction in length of the home not to

exceed 4 feet.

The relocation or addition of non-load bearing walls,

resulting in modification of a maximum of two rooms of the model.

The relocation of doors or windows within a room.

Other changes that do not affect the plumbing, electrical,

mechanical or structural integrity of the units, such as the reversal of the

floor plan layout, the relocation of an electrical receptacle, or the

installation of sliding closet doors instead of hinged doors.

This is a copy of a public record, reproduced as it was published. It is not legal advice, and it may not be the version a court would rely on. Check the official source before you cite it.

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Section 880.10 Definitions · 77 Ill. Adm. Code 880.10 | Frix