A. 
Mobile home design and construction shall conform to generally accepted standards of the mobile home industry.
B. 
Materials, assemblies and equipment shall conform to generally accepted standards with respect to strength, durability, corrosion and fire resistance and other qualities recognized under such standards.
C. 
Habitable and nonhabitable space shall be arranged, located, lighted and ventilated so as to be appropriate for the intended use.
D. 
Mechanical systems and equipment shall be designed, installed and located so that under normal conditions of use such systems and equipment shall be capable of functioning safely and efficiently without being forced to operate beyond the designed capacity.
E. 
Equipment requiring operation, inspection or maintenance shall be located so that easy access to it is provided.
F. 
Plumbing, heating and electrical systems shall be properly connected to approved sources of supply when a mobile home is in a fixed location and occupied for living purposes.
G. 
Mobile home units, including mechanical systems and equipment, shall be maintained and operated so as to be free of conditions conducive to personal injury or detrimental to health or welfare.
Mobile homes shall be structurally sound, effectively insulated and capable of sustaining designed dynamic loading.
A. 
Body and body framing.
(1) 
Body frames shall be designed and constructed as complete units. Wall and floor surfaces shall be firmly attached to body framing members. Doors and windows shall be securely framed in place. Framing and exterior skin shall be surface treated or painted to prevent deterioration.
(2) 
Roofs shall be pitched for proper drainage and shall be weathertight. Roof decks shall be of metal or noncombustible materials.
(3) 
Wood body framing shall be of seasonal lumber and shall provide adequate support and rigidity. Members shall be joined so as to ensure permanent attachment to each other.
(4) 
Metal body framing shall be of structural formed sections, riveted, bolted or welded together. Where different metals are joined, precaution shall be taken to prevent electrolytic action.
(5) 
Insulation of floors, roof and exterior walls shall consist of noncombustible materials.
(6) 
Ventilation shall be provided to minimize deterioration of structural members from condensation or other causes.
B. 
Chassis.
(1) 
The chassis shall extend substantially the length of the body and shall be capable of supporting the live and dead loads to which subjected.
(2) 
The tongue or drawbar shall be secured to the chassis and shall be capable of supporting the weight of the forward end of the mobile home. If designed to support gas cylinders, the tongue shall be of sufficient strength and shall permit secure attachment.
(3) 
The hitch shall be securely attached to the tongue so as to become an integral part of the tongue.
(4) 
Axles, spring assemblies and wheels shall be capable of supporting the calculated loads.
C. 
Placement. Placement of a mobile home on a mobile home stand by jacks or supports shall be such as to ensure the retention of the mobile home in a fixed position.
A. 
Maximum occupancy. The maximum number of occupants of a mobile home shall be limited to the number determined on the basis of the square feet of floor area of habitable space, exclusive of habitable space used for cooking purposes, in accordance with the following:
(1) 
For one or two occupants: 150 square feet.
(2) 
For three occupants: 250 square feet.
(3) 
For each occupant thereafter: 80 square feet additional.
B. 
Height of habitable space. Habitable space shall have a minimum ceiling height of seven feet over 50% of the floor area; and the floor area where the ceiling height is less than five feet shall not be considered in computing gross floor area.
C. 
Bathrooms and toilet rooms. Bathrooms and toilet rooms shall have provisions for privacy and shall be provided with floors of moisture-resistant material.
D. 
Prohibited uses. Bathrooms, toilet rooms, kitchens and kitchenettes shall not be used for sleeping purposes.
E. 
Exits. A mobile home shall have a safe and unobstructed primary exit and an emergency exit located remote from the primary exit.
A. 
Habitable space. A mobile home shall be provided with natural light and ventilation adequate for the intended use of each habitable space in accordance with the following:
(1) 
Window area shall equal at least 10% of the floor area of each habitable space; and
(2) 
Openable area of windows and other openings used for natural ventilation of each habitable space shall equal at least 45% of the required window area, or mechanical ventilation shall be provided as set forth in § 121-52B(16).
B. 
Nonhabitable space. A mobile home shall be provided with light and ventilation adequate for the intended use of nonhabitable space in accordance with the following:
(1) 
Kitchenettes, bathrooms and toilet rooms shall be provided with light of sufficient intensity and so distributed as to permit the maintenance of sanitary conditions and the safe use of the space and the appliances, equipment and fixtures.
(2) 
Kitchenettes, bathrooms and toilet rooms shall be provided with natural ventilation consisting of openable areas of not less than 1 1/2 square feet for bathrooms and toilet rooms and not less than three square feet for kitchenettes, or mechanical ventilation shall be provided as set forth in § 121-52B(16).
A. 
Plumbing.
(1) 
A mobile home shall contain a kitchen sink, flush-type water closet, bathtub or shower and lavatory.
(2) 
A hot- and cold-water supply shall be provided at the kitchen sink, bathtub or shower and lavatory. Cold water shall be supplied to the water closet.
(3) 
The plumbing system shall be designed and arranged so as to facilitate connecting to an approved exterior water supply and sewage disposal systems, provide adequate water supply to all plumbing fixtures and dispose of all liquid wastes therefrom.
B. 
Heating, ventilating and air conditioning.
(1) 
A mobile home shall contain space-heating equipment and water-heating equipment.
(2) 
Areas allocated for installation of space-heating and water-heating equipment shall provide adequate clearance so that the surface of adjacent combustible materials will not exceed a safe temperature. Curtains and draperies shall not be used in such areas.
(3) 
Space and water-heating units shall be of an approved type for installation in a mobile home. Fuel-burning water heaters and furnaces other than those having a sealed combustion space shall not be located in sleeping rooms, bathrooms and toilet rooms.
(4) 
Space-heating units shall have sufficient capacity to maintain a minimum inside temperature of 70° F., based on the average of the recorded annual minimum outside temperatures for the locality and shall be provided with manual or automatic temperature control devices.
(5) 
Water-heating units shall have sufficient capacity to deliver at each hot-water outlet an ample supply of water at a minimum temperature range of 130° F. to 140° F., and such units shall be provided with safety devices arranged to relieve hazardous pressures and excessive temperatures.
(6) 
Electric space- and water-heating equipment shall be of an approved type and shall have adequate circuit-protection devices.
(7) 
Gas- and liquid-fuel-burning equipment shall be specifically designed for the type of fuel used. Flues and vents shall be suitable for the type of fuel used and shall be installed so that the surface of adjacent combustible material will not exceed a safe temperature.
(8) 
Automatically operated heat-producing equipment using utility gas shall have a valve that will automatically shut off the flow of gas to the main burner when the pilot flame is extinguished.
(9) 
Automatically operated heat-producing equipment using liquefied petroleum gas shall have a valve that will automatically shut off the flow of gas to the pilot light and main burner when the pilot light is extinguished.
(10) 
Fuel-burning space and water-heating units shall be vented. Other fuel-burning equipment shall be vented where the discharge of products of combustion into the space where the equipment is installed would be unsafe.
(11) 
Liquid-fuel-burning equipment shall be vented and shall be provided with means to prevent spilling of fuel.
(12) 
Fuel storage containers and gas cylinders shall be mounted outside the mobile home or in a space that is vented to the outside and is vaportight to the inside.
(13) 
Warm-air supply ducts and fittings shall be of noncombustible material.
(14) 
Return-air ducts shall be of noncombustible material where exposed to temperatures which are unsafe for combustible materials.
(15) 
Return-air grilles in doors and partitions shall be of a permanent nonclosable type. Openings for return air shall not be located in bathrooms, toilet rooms or kitchenettes.
(16) 
Mechanical ventilation, where required, shall exhaust air at rates not less than the following:
(a) 
For habitable space: two air changes per hour.
(b) 
For bathrooms and toilet rooms: 25 cubic feet per minute.
(c) 
For kitchenettes: 100 cubic feet per minute.
(17) 
Air conditioning for habitable space provided in lieu of mechanical ventilation shall supply an amount of air not less than that set forth in Subsection B(16), with at least 25% of the required quantity taken from the outside.
C. 
Electrical.
(1) 
A mobile home shall contain an electrical wiring system and service equipment.
(2) 
Electrical wiring shall have adequate capacity for designed lighting and appliance equipment. Individual circuits shall contain overload protection devices.
(3) 
At least one receptacle outlet shall be provided for each multiple of 12 linear feet of wall space or major fraction thereof in each habitable space and kitchenette. Bathrooms and toilet rooms shall have permanently installed lighting fixtures and switches located so as not to be an electrical hazard.
(4) 
Exterior equipment shall be weatherproofed to ensure protection of equipment from the elements. Service equipment shall have means for quick disconnection from the source of supply.
(5) 
Provision shall be made for grounding non-current-carrying metallic parts of the electrical system. Such grounding shall be common to one external supply point. Provision shall be made for exterior source grounding of electrical system.
D. 
Cooking and refrigeration.
(1) 
A mobile home shall contain cooking equipment and refrigeration equipment.
(2) 
Electrical cooking and refrigeration equipment shall be of an approved type for installation in a mobile home and shall have adequate circuit-protection devices.
(3) 
Gas-burning cooking and refrigeration equipment shall be of an approved type for mobile home installation, and connections to rigid pipe shall be made with approved flexible metal gas-appliance connectors.
A mobile home shall be maintained in a safe and sanitary condition.
A. 
Interior. Floors, walls, ceilings, furnishings and fixtures shall be maintained in a clean and sanitary condition. Exits shall be maintained free of obstructions.
B. 
Garbage and refuse. Suitable containers shall be provided for the temporary storage of garbage and refuse within the mobile home.
C. 
Screening. From May 1 to October 1, entrances to the mobile home shall be provided with self-closing-type devices or screens, and windows and other openings used for ventilation shall be appropriately screened.
D. 
Extermination. Mobile homes shall be maintained free of insects, vermin and rodents. Extermination shall be effected in conformance with generally accepted practice.
E. 
Flammable materials. Flammable cleaning liquids and other flammable materials shall be stored in a safe, approved manner.