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Earlier editions: 2026-09

Title 9 — HEALTH AND SANITATION

National City Municipal Code Ch. 9.28 Trailer Parks

National City Municipal Code · 2026-10 edition · updated 2026-10-04 · National City

Cite as: National City Municipal Code Chapter 9.28 · Text as of 2026-10-04

* Cross Reference: For licensing of trailer parks, see Title 6.

9.28.010 - Restrictions—Generally.

A. It is unlawful for any person owning or operating an auto and trailer park, to use or cause or permit to be used for occupancy:

  1. Any trailer coach from which any tire or wheel has been removed, except for the purpose of making emergency repairs;

  2. Any trailer coach to which are attached any rigid water, gas or sewer pipes; provided, however, that approved metal tubing not to exceed one-half inch inside diameter may be used for water and gas.

  3. Any trailer coach which is permanently attached with underpinning or foundation to the ground;

  4. Any trailer coach which does not conform to the requirements of the California State Motor Vehicle Code governing the use of trailers on public highways;

  5. Any trailer coach which is in an insanitary condition;

  6. Any trailer coach which is structurally unsound and does not protect its inhabitants against the elements.

B. No buildings or structures shall be permitted on any trailer site; provided, however, that an awning of fire resistant material, as approved by the fire chief of the city shall be permitted that is not enclosed or subject to enclosure on one-half of one side vertically and further provided that such semi-enclosure shall not exceed seventy square feet in area.

(Ord. 893 § 12, 1955)

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9.28.020 - Renting prohibited.

It is unlawful for any person owning or operating an auto and trailer park to rent as lessor or hold out for rent any trailer coach in an auto and trailer park.

(Ord. 893 § 13, 1955)

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9.28.030 - Tents prohibited.

No tents may be erected or occupied in an auto trailer park.

(Ord. 893 § 14, 1955)

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9.28.040 - Parking—Generally.

It is unlawful to use a trailer for living or sleeping purposes except when parked within a licensed trailer park.

(Ord. 893 § 15, 1955)

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9.28.050 - Parking—City streets.

It is unlawful to camp overnight or to park a trailer coach overnight upon any portion of the right-of-way of any public street or alley.

This provision shall not apply where a trailer coach is parked for the purpose of making emergency repairs.

(Ord. 893 § 16, 1955)

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9.28.060 - Trailer sites—Specifications.

A. Each trailer site in an auto and trailer park shall not be less than one thousand square feet in area and shall be not less than twenty-five feet in width. The corners of said area shall be clearly and distinctly marked. Each trailer site shall be numbered or otherwise marked for identifications purposes.

B. A lighted bulletin board, indicating the location of each trailer space, must be displayed at or near the office.

C. No trailer coach shall be located closer than six feet from any building or another trailer coach.

D. Each trailer coach and each building shall not be located closer than four feet from the boundary line of the trailer park.

E. Each trailer site shall front upon a driveway not less than thirty feet wide, except that where off-street parking facilities are provided, the driveway shall be not less than twenty-five feet wide, and in such case adequate signs shall be posted and maintained indicating that parking is forbidden in such driveways. All driveways shall have clear and unobstructed access to a public thoroughfare. Each trailer shall be parked on each site with the hitch fronting toward this driveway and no stationary fencing or structures shall be permitted in front of or attached to the trailer.

In addition to the above requirements, it shall be required that adequate off-street parking facilities be provided elsewhere in the trailer park for visitors in the ratio of one off-street parking space for every ten trailer spaces in said park.

F. An auto and trailer park shall not accommodate any trailer coach when there are no available trailer sites within the park.

(Ord. 983 § 17, 1955)

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9.28.070 - Toilet facilities—Generally.

A. There shall be not less than two water closets in a separate compartment for each sex for the first fifteen trailer sites or fractional part thereof. There shall be one additional water closet for each sex in a separate compartment for every ten additional trailer sites or fractional part thereof. Entrance to separate compartments for men and women shall be not less than ten feet apart.

Twenty-five percent of the required water closets for men may be substituted by approved urinals or approved equivalent. One shell or lip urinal or twenty-four inches of urinal trough may be computed as one water closet.

B. Toilet facilities shall not be further than two hundred feet from each trailer site.

C. Each toilet shall be for the exclusive use of the occupants of the trailer sites in the auto and trailer park.

D. Every water compartment in any building in an auto and trailer park shall be at least thirty inches in clear width.

E. The public toilets shall be maintained readily accessible to the tenants at all times.

F. In every auto and trailer park, water closets for men shall be distinctly marked "Men"; and water closets for women shall be distinctly marked "Women." In addition, the location of water closets shall be plainly indicated by signs.

G. The floor of every water closet compartment shall be constructed and shall be maintained in a waterproof condition by the use of cement, concrete, or other approved waterproof material. The waterproof material shall be applied upward on the interior walls of the water closet compartment to a height of not less than twelve inches above the floor.

(Ord. 893 § 18, 1955)

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9.28.080 - Toilet facilities—In trailers.

It is unlawful for any person to use, or permit the use of, any toilet in any trailer coach within an auto and trailer park, unless such toilet and trailer park meet the requirements of Title 8, Art. 3, Chapter 9 of the California Administrative Code as now set forth therein, or as the same may be amended from time to time. The permitted use of toilet and bathing facilities within the trailer coach shall not reduce the requirements of toilet and bath facilities required herein.

(Ord. 893 § 19, 1955)

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9.28.090 - Bathing facilities.

A. In every auto and trailer park shower baths or other bathing facilities with hot and cold running water shall be installed for each sex in separate compartments for every fifteen or fractional part of fifteen trailer sites. Every compartment shall be provided with a self-closing door, constructed of a material which will not absorb water, or otherwise equipped with a waterproof draw curtain. Shower baths or other bathing facilities provided herein shall not be farther than two hundred feet from each trailer site. Bathing facilities shall be accessible at all times.

B. The floor of every shower bath compartment shall be constructed and shall be maintained in a waterproof condition by the use of cement, concrete or other approved waterproof material. The walls of every shower bath compartment to a height of not less than six feet above the floor shall be constructed of ceramic or metal tile or sheetmetal or equivalent material.

C. Wooden or cloth mats or grids shall not be used in bathing compartments.

(Ord. 893 § 20, 1955)

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9.28.100 - Toilet and shower facilities—Buildings.

Every water closet compartment or compartment containing bathing facilities shall be:

A. Cleaned daily and disinfected with a hypochloride solution or equivalent;

B. Maintained free from obnoxious odors, flies, mosquitoes, or other insects and the interiors shall be kept well painted. All facilities shall be maintained in good repair;

C. Provided with one or more windows having an aggregate area of not less than six square feet. However, if the room contains more than one water closet, bath or urinal, the total window area shall be equivalent to three square feet for each water closet, bath or urinal, but need not exceed one-fourth of the superficial floor area of the room. Fifty percent of the required window area shall be openable;

D. Windows and doors shall be protected with fly-tight screening;

E. All toilet and shower buildings shall be well illuminated both day and night;

F. There shall be constructed in every trailer park a laundry compartment with not less than two laundry trays supplied with hot and cold water;

G. The floors and at least twelve inches of the walls above the floor shall be constructed of approved waterproof masonry composition;

H. Each laundry compartment shall have window area equal to at least one-eighth of the floor area, but in no case shall it be less than nine square feet. Fifty percent of the required window area shall be openable;

I. In every auto and trailer park there shall be set aside a space convenient to the laundry facilities for the occupants of the trailer sites to dry clothes;

J. There shall be installed in every auto and trailer park one or more slop sinks equipped with running water, which shall be located at each public utility building;

K. There shall be not less than two lavatories with hot and cold running water for each sex installed in every building in an auto and trailer park containing public toilets.

(Ord. 893 § 21, 1955)

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9.28.110 - Water supply.

A. There shall be in every auto and trailer park an adequate supply of pure water for all the requirements of the trailer park; the water shall be obtainable from faucets installed at each trailer site. Water distribution and pipe sizes shall be designed in accordance with the National Bureau of Standards, BMS 79. Each independent trailer shall be considered as six fixture units.

B. No drinking vessels or cups for common use are permissible in any auto and trailer park.

C. Drinking fountains, if installed, shall be maintained in a sanitary condition and shall be of a type approved by the enforcement agency.

(Ord. 893 § 22, 1955)

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9.28.120 - Garbage disposal.

A. In every auto and trailer park a sufficient number of rubbish containers and metal garbage cans with covers, appropriately labeled, shall be of a size adequate to contain the refuse produced by the trailer park.

B. All garbage, waste and rubbish in every auto and trailer park shall be removed from the premises and disposed of without creating a nuisance.

C. A fly proof building, or a fly proof portion of a building, equipped with a sloping concrete floor, a four inch drain, and running water shall be provided for the storage of garbage and trash containers.

(Ord. 893 § 23, 1955)

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9.28.130 - Sewage disposal.

It is unlawful to permit any waste water or material from sinks or other plumbing fixtures in a public toilet or bath building or in a trailer coach to be deposited upon the surface of the ground, and all such fixtures must be connected to a public sanitary sewer system. For the purposes of designing sewage disposal systems, each trailer coach shall be considered as six fixture units.

(Ord. 893 § 24, 1955)

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9.28.140 - Trailer sites—Maintenance.

The area or tract of land upon which an auto and trailer park is situated and each trailer site shall be:

A. Adequately drained and graded;

B. Driveways shall be surfaced with two inches of road mix pavement or better and the surfacing shall be maintained in good repair;

C. All areas, other than landscaped areas or driveways, shall be covered or treated with an oil seal surface or better;

D. Maintained free from dust;

E. Maintained clean and free from accumulation of refuse, garbage, rubbish or debris;

F. The trailer site and the space directly beneath each trailer coach shall be maintained clean and free from refuse, rubbish or other impediments;

G. Public address systems or loudspeakers shall not be used between the hours of six p.m. and eight a.m.

(Ord. 893 § 25, 1955)

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9.28.150 - Liquefied petroleum gases.

The location, installation, marking, filling, maintenance and use of LPG tanks and associated equipment shall be in accordance with the industrial safety orders of the California State Division of Industrial Safety as affects LPG.

Each trailer coach shall be limited to not more than two tanks of a capacity of six gallons each and said tanks shall be substantially fastened to the front portion of the trailer coach.

(Ord. 893 § 26, 1955)

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9.28.160 - Electrical installations.

All auto and trailer parks shall install and provide an electrical service and distribution system as follows:

A. Each trailer site shall be provided with an appliance outlet receptacle rated at not less than thirty amperes, installed on a separate branch circuit of not smaller than No. 12 A. W. G. wire, and protected by a nonadjustable, nontamperable over current protective device rated at not more than fifteen amperes.

B. Each appliance outlet shall be located so that not more than twenty-five feet of flexible type "S" cord need be used to connect a trailer to such outlet.

C. All electrical equipment, conductors and devices shall be installed in rigid metal conduit of an approved type and design for the particular location and use, except as follows:

  1. Exposed wires for meter loops which are protected from accidental contact and mechanical injury and are accessible only to authorized persons;

  2. Multi-conductor cables of a type listed or approved for direct burial in the earth or ground provided that all such cables located less than one foot below ground level, shall be protected by suitable kick pipes; all splices and connections to such cables shall be made in boxes or fittings approved for that purpose and location.

D. For the purpose of determining the conductor size for service, feed, subfeed, and branch circuits, each trailer site shall be computed as requiring not less than ten amperes or 120 volts; provided, however, that 120/240 volt single phase systems may be used for more than one trailer site.

E. All metal parts of all trailers located in an auto and trailer park and connected to an electrical appliance outlet shall be effectively grounded; such grounding conductor shall be permanently connected to a continuous water supply system and of a size not less than that required by the California State Electrical Safety Orders.

F. No trailer shall be connected to an electrical appliance outlet unless the electrical wiring in or about said trailer is in good condition and of a type which conforms to accepted standards of safety.

G. All work and materials used in any of the electrical installations provided for in this section shall conform to the requirements set forth in the Electrical Safety Orders, Division of Industrial Safety, Department of Industrial Relations, state of California, the electrical ordinances of the city and the rules and regulations of the public service department of the city, three copies of which are on file in the office of the city clerk of said city.

(Ord. 893 § 27, 1955)

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9.28.170 - Registry.

Every person who owns or operates an auto and trailer park shall keep a register in which shall be entered:

A. The name and address of each guest who is the owner or operator of an automobile, and the name and address of each member of his party for which accommodations are afforded or for which space is rented and the identification space of the trailer site the guest occupies;

B. The make, type and license number of the automobile and trailer, the name of the registered owner of the trailer and the state in which such vehicle or vehicles are registered and the year of registration;

C. The registry shall be made available to the police department or any of the enforcement officers designated in this chapter, on demand.

(Ord. 893 § 28, 1955)

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9.28.180 - Artificial light.

In every auto and trailer park there shall be installed and kept burning from sunset to sunrise sufficient artificial light to adequately illuminate all trailer park roadways, walkways and areas around service buildings.

(Ord. 893 § 29, 1955)

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9.28.190 - Animals—Dogs.

A. Dogs and animals shall not be permitted to run at large in any auto and trailer park.

B. Poultry and other barnyard animals shall not be permitted in any auto and trailer park.

(Ord. 893 § 30, 1955)

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9.28.200 - Caretaker.

It is unlawful for any person to operate, occupy or maintain, or cause or permit to be operated, occupied or maintained, any auto and trailer park unless there is a caretaker on duty in or about the trailer park at all times.

(Ord. 893 § 31, 1955)

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9.28.210 - Applicability—Existing parks.

No provision of this chapter shall be construed to require a change in the size of existing trailer sites or a structural addition, structural alteration or a structural change in or on an existing building except the requirement of Section 9.28.170B. and Section 9.28.230A., B. and C.

(Ord. 893 § 32, 1955)

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9.28.220 - Owner—Operator—Responsibility.

It is unlawful for any person, firm or corporation owning or operating a trailer park in the city to violate any of the provisions of this chapter.

(Ord. 893 § 33, 1955)

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9.28.230 - Violation—Penalty.

Any person, firm or corporation violating any of the provisions of this chapter, or disregarding any lawful order of the enforcement agencies or findings of the city council with respect to said trailer park, or contributing in any way to the violation of this chapter is guilty of an infraction, and upon conviction thereof may be punished as prescribed in Section 1.20.010. Every person, firm or corporation violating or contributing in any way to the violation of any provision of this chapter is guilty of a separate offense for each day during which such violation continues, and is punishable therefor as herein provided.

(Ord. 1621, 1978; Ord. 1358 § 2 (part), 1973; Ord. 893 § 34, 1955)

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