Division 5.01 — Zoning Districts and Boundaries

Sections:

5.01.000: Purpose 5.01.005: Establishment of Base Zoning Districts 5.01.010: Zoning Map Adoption 5.01.015: Zoning District Boundaries

The purpose of this Division is to establish zoning districts to implement the goals of the community as stated in The Ontario Plan. The text and maps of the Policy Plan component of The Ontario Plan will provide additional guidance in the development and use of properties throughout the City.

In order to carry out the purpose and provisions of this Development Code, the City is hereby divided into the following zoning districts:

A. Residential Zoning Districts.

1. AR-2 (Residential-Agricultural—0 to 2.0 DU/Acre) Zoning District. The AR-2 zoning district is hereby established to accommodate single-family residences on large lots, at a density range of 0 to 2.0 dwelling units per acre and allow for limited agricultural activities and animal keeping within a rural environment. The AR-2 zoning district is further intended to maintain a rural agricultural heritage and protect the area from suburban infringement, while maintaining a harmonious relationship between the rural and adjacent suburban land uses. The AR-2 zoning district is consistent with and implements the Rural Residential land use designation of the Policy Plan component of The Ontario Plan.

2. RE-2 (Rural Estate—0 to 2.0 DU/Acre) Zoning District. The RE-2 zoning district is hereby established to accommodate single-family residences on larger lots, at a density range of 0 to 2.0 dwelling units per acre, in a semi-rural environment where limited animal keeping is permitted. The RE-2 zoning district is consistent with and implements the Rural Residential land use designation of the Policy Plan component of The Ontario Plan.

3. RE-4 (Residential Estate—2.1 to 4.0 DU/Acre) Zoning District. The RE-4 zoning district is hereby established to accommodate single-family homes on estate-sized lots, in a suburban environment, at a density range of 2.1 to 4.0 dwelling units per acre. The RE-4 zoning district is consistent with and implements the Low Density Residential land use designation of the Policy Plan component of The Ontario Plan.

4. LDR-5 (Low Density Residential—2.1 to 5.0 DU/Acre) Zoning District. The LDR-5 zoning district is hereby established to accommodate single-family homes on individual lots, in a suburban environment, at a density range of 2.1 to 5.0 dwelling units per acre. The LDR-5 zoning district is consistent with and implements the Low Density Residential land use designation of the Policy Plan component of The Ontario Plan.

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5. MDR-11 (Low-Medium Density Residential—5.1 to 11.0 DU/Acre) Zoning District. The MDR-11 zoning district is hereby established to accommodate a variety of attached and detached housing types, in a suburban environment, at a density range of 5.1 to 11.0 dwelling units per acre. The MDR-11 zoning district is consistent with and implements the Low-Medium Density Residential land use designation of the Policy Plan component of The Ontario Plan.

o 11.0 DU/Acre) Zoning District. The MDR-11 zoning district is hereby established to accommodate a variety of attached and detached housing types, in a suburban environment, at a density range of 5.1 to 11.0 dwelling units per acre. The MDR-11 zoning district is consistent with and implements the Low-Medium Density Residential land use designation of the Policy Plan component of The Ontario Plan.

6. MDR-18 (Medium Density Residential—11.1 to 18.0 DU/Acre) Zoning District. The MDR-18 zoning district is hereby established to accommodate a variety of attached and detached housing types, in a suburban environment, at a density range of 11.1 to 18.0 dwelling units per acre. The MDR-18 zoning district is consistent with and implements the Medium Density Residential land use designation of the Policy Plan component of The Ontario Plan.

7. MDR-25 (Medium-High Density Residential—18.1 to 25.0 DU/Acre) Zoning District. The MDR-25 zoning district is hereby established to accommodate higher density residential developments, in a more urbanized environment, at a density range of 18.1 to 25.0 dwelling units per acre. The MDR-25 zoning district is consistent with and implements the Medium Density Residential land use designation of the Policy Plan component of The Ontario Plan.

8. HDR-45 (High Density Residential—25.1 to 45.0 DU/Acre) Zoning District. The HDR-45 zoning district is hereby established to accommodate high-density multiple-family developments in an urban environment, generally located within 1/2-mile of a transit corridor or station, at a density range of 25.1 to 45.0 dwelling units per acre. The HDR-45 zoning district is consistent with and implements the High Density Residential land use designation of the Policy Plan component of The Ontario Plan.

B. Commercial Zoning Districts.

1. CS (Corner Store) Zoning District. The CS zoning district is hereby established to accommodate pedestrian-oriented neighborhood retail and service establishments developed at a maximum intensity of 0.4 FAR, which would have few impacts to adjacent residential uses due to the types of uses allowed and their limited hours of operation. CS zoning district locations are within established or planned neighborhoods, generally along residential collector streets, and are intended to provide their goods and services within walking distance to most of their customers. This zoning district provides for a scale and character of development that tends to attract and promote a walk-in clientele. Development within the CS zoning district should maximize human scale design elements, while providing a sensitive transition between the allowed uses and neighboring residences, including the provision of adequate and properly sited parking (including allowances for on-street parking). Sites within this zoning district are typically small in size (less than 0.5-acre), are usually stand-alone land uses, and are intended to fit into and protect the residential pattern of development. The CS zoning district is consistent with and implements the Neighborhood Commercial land use designation of the Policy Plan component of The Ontario Plan.

ncluding allowances for on-street parking). Sites within this zoning district are typically small in size (less than 0.5-acre), are usually stand-alone land uses, and are intended to fit into and protect the residential pattern of development. The CS zoning district is consistent with and implements the Neighborhood Commercial land use designation of the Policy Plan component of The Ontario Plan.

2. CN (Neighborhood Commercial—0.4 Maximum FAR) Zoning District. The CN zoning district is hereby established to accommodate the development of convenience centers at a maximum intensity of 0.4 FAR and are intended to serve residents within a one to 2-mile radius, with some customers within walking distance. Intended uses are smaller scale, which support the local market rather than a citywide or regional market (i.e., the difference between a Best Buy and a Radio Shack). Given their proximity to residential uses, the hours and types of uses allowed within the CN zoning district may be limited either by ordinance or by conditions of approval. Uses may be standalone or within a center generally 10 to 15 acres in size. The CN zoning district is

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consistent with and implements the Neighborhood Commercial land use designation of the Policy Plan component of The Ontario Plan.

3. CC (Community Commercial—0.4 Maximum FAR) Zoning District. The CC zoning district is hereby established to accommodate retail, office, and service uses developed at a maximum intensity of 0.4 FAR, which serve residents within a 5-mile radius. If located within close proximity to residential areas, the operation of the commercial land uses may be limited to protect the nearby sensitive uses. Commercial uses within the CC zoning district may be standalone or within centers generally 10 to 20 acres in size. The CC zoning district is consistent with and implements the General Commercial land use designation of the Policy Plan component of The Ontario Plan.

close proximity to residential areas, the operation of the commercial land uses may be limited to protect the nearby sensitive uses. Commercial uses within the CC zoning district may be standalone or within centers generally 10 to 20 acres in size. The CC zoning district is consistent with and implements the General Commercial land use designation of the Policy Plan component of The Ontario Plan.

4. CR (Regional Commercial—0.4 Maximum FAR) Zoning District. The CR zoning district is hereby established to accommodate commercial and entertainment centers which are larger in size than would otherwise be accommodated in the CC zoning district, developed at a maximum intensity of 0.4 FAR. The zoning district is intended for intense, regional-serving commercial and entertainment uses, and is generally located adjacent to, or in close proximity to, freeways and arterial roadways that accommodate regional traffic. Uses may be standalone or within a center generally 15 or more acres in size. The CR zoning district is consistent with and implements the General Commercial and Office Commercial land use designations of the Policy Plan component of The Ontario Plan. Furthermore, the CR zoning district is consistent with and implements the Office Commercial land use designation of the Policy Plan component of The Ontario Plan; provided, (a) the property shall have a minimum of 350 lineal feet of freeway frontage along Interstate 10 or Interstate 15, and (b) the use of the property shall be restricted to automobile dealers (including new and used automobiles, light trucks and vans).

5. CCS (Convention Center Support Commercial) Zoning District. The CCS zoning district is intended to accommodate uses developed at a maximum intensity of 1.0 FAR, which predominantly serve the Ontario Convention Center, regional uses, and the special needs of leisure and business clientele who visit the City and surrounding region. The CCS zoning district is consistent with and implements the Hospitality land use designation of the Policy Plan component of The Ontario Plan.

6. OL (Low Intensity Office) Zoning District. The OL zoning district is hereby established to accommodate low-intensity office and support commercial uses developed at a maximum intensity of 0.75 FAR, which are typically located in close proximity to residential developments. Development within this zoning district is residential in scale and typically no more than 2 stories in height. Uses within this zoning district are generally limited in their hours of operation to limit their impact upon nearby residents, and include administrative and business support services, local branches of financial institutions, legal services, insurance services, real estate services, medical and dental services, and similar support services. The OL zoning district is consistent with and implements the Office/Commercial land use designation of the Policy Plan component of The Ontario Plan.

ir impact upon nearby residents, and include administrative and business support services, local branches of financial institutions, legal services, insurance services, real estate services, medical and dental services, and similar support services. The OL zoning district is consistent with and implements the Office/Commercial land use designation of the Policy Plan component of The Ontario Plan.

7. OH (High Intensity Office) Zoning District. The OH zoning district is hereby established to accommodate intense professional office and supporting uses developed at a maximum intensity of 0.75 FAR, and is intended to be applied in areas planned for more concentrated urban uses, or in key locations of potential mass transit, major intersections, or in close proximity to identified activity centers. The OH zoning district is consistent with and implements the Office/Commercial land use designation of the Policy Plan component of The Ontario Plan.

C. Mixed Use Zoning Districts.

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1. MU-1 (Downtown Mixed Use) Zoning District.

a. The MU-1 zoning district is hereby established to accommodate a fairly intensive mixture of vertical and horizontal retail, entertainment, and office uses at a development intensity of up to 2.0 FAR, and residential uses at a density of 25 to 75 DU/AC, with the most intensive uses envisioned along Euclid Avenue and Holt Boulevard. Development projects are intended to maintain a pedestrian friendly atmosphere, while at the same time enhancing the historic character of the area.

b. Furthermore, the MU-1 zoning district is established to: [i] recognize, protect, and enhance the visual character and quality of Ontario's historic downtown area as a historic resource; [ii] establish and recognize Ontario's historic downtown as the arts and entertainment mecca for the surrounding region, to include a wide range of allowed uses, such as shopping, restaurants, outdoor dining, cultural offerings, street fairs, artist festivals, galleries, work/live lofts, breweries, and artisan co-ops; [iii] recognize Holt Boulevard as a vital east-west link to Ontario's historic downtown, offering opportunities for vertical and horizontal mixed use developments consisting of market rate and below market rate housing, retail and offices, and work/live uses; and [iv] recognize Ontario's civic center for its significant outdoor spaces, amenities and services, which serve to enhance the historic downtown's shopping, dining, and living experiences.

c. In order to carry out the purposes and provisions of the Land Use component of The Ontario Plan and this Development Code, the MU-1 zoning district is hereby divided into four Land Use Areas. The boundaries of each Land Use Area (LUA) is shown in Figure 5.01-1 (MU-1 (Downtown Mixed Use) Zoning District Land Use Areas Map) of this Division, and their purposes are described below.

(1) LUA-1 (Euclid Avenue Entertainment) District—The Euclid Avenue Entertainment District is a central urban location intended to provide the vitality, amenities, and a range of entertainment, shopping, restaurant, outdoor dining, and cultural offerings. The District is further intended to promote a variety of dense housing options; enhanced public and private rights-of-way to improve pedestrian, bicyclist, and vehicular connectivity; and grow employment opportunities.

(2) LUA-2 (Arts) District—

(a) The Arts District is intended as a dynamic destination for locals and tourists, while creating a fulfilling urban experience energized by artistic, educational, and commercial participants. The focus of the Area is to increase the number of collaborated events and programs within the Area, with the intent to attract visitors, promote economic vitality, and boost revenue. Street fairs, artist festivals, restaurants, galleries, work/live lofts, breweries, and artisan co-ops will contribute to the physical and cultural diversity of the Arts District.

(b) The Arts District is divided into two subareas: Arts District North

and Arts District South.

(i) Arts District North is intended to accommodate a mix of work/live lofts, artisan co-ops, restaurants, galleries, breweries, and other commercial uses intended to strengthen the economic base of the area.

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Figure 5.01-1: MU-1 (Downtown Mixed-Use) Zoning District Land Use Areas Map

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Figure 5.01-2: MU-1 (Downtown Mized Use) Zoning District Land Use Map

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(ii) Arts District South is situated between Union Pacific and Southern Pacific Rail Lines, within an area not particularly suited to uses having a residential component (such as work/live lofts). Arts District South is envisioned to accommodate a mix of commercial, business park, and light industrial activities, which like Arts District North, will serve to stimulate the economic vitality of the area.

(3) LUA-3 (Holt Boulevard) District—Holt Boulevard is a vital east-west link to the downtown, particularly from Ontario International Airport, the Ontario Convention Center, and the nearby hospitality center. The Holt Boulevard District offers the most opportunity for development of market-rate and attainable housing. Mixed-use may be vertical or horizontal, with retail or live/work on the ground floor. Residents will have access to many downtown amenities, including shopping, public services, open space, and public transportation (Bus Rapid Transit or "BRT"). The District will be designed as a signature gateway to the City's historic downtown.

opportunity for development of market-rate and attainable housing. Mixed-use may be vertical or horizontal, with retail or live/work on the ground floor. Residents will have access to many downtown amenities, including shopping, public services, open space, and public transportation (Bus Rapid Transit or "BRT"). The District will be designed as a signature gateway to the City's historic downtown.

(4) LUA-4 (Civic Center) District—The Civic Center District's proximity to the Euclid Avenue Entertainment District will contribute to the community character and commercial vitality of Ontario's historic downtown area. People in need of City services at City Hall, the Public Library, or the Community Center, are potential shoppers and diners at downtown stores and restaurants. Furthermore, the Civic Center's significant outdoor spaces provide a link to downtown shopping, dining, streetscapes, and friendly pedestrian experiences.

d. To accomplish the objectives of the MU-1 (Downtown Mixed Use) zoning district, certain blocks have been imposed with use restrictions, as shown in Figure 5.01-2 (MU-1 (Downtown Mixed Use) Zoning District Land Use Map) of this Division.

e. The MU-1 zoning district, along with the Land Use Areas and Land Use Subdistricts established thereunder, is consistent with and implements the Downtown Mixed Use land use designation of the Policy Plan component of The Ontario Plan.

2. MU-3 (East Guasti Mixed Use) Zoning District. The MU-3 zoning district is hereby established to accommodate a mixture of low-rise (up to 5 stories) office and retail uses at an intensity of 1.0 FAR and residential uses at a density of 20 to 65 DU/AC, that will create identity and place within the southeast corner of the Guasti Mixed Use area. Approximately one-half of the MU-3 zoning district is developed with the historic San Secondo d'Asti Catholic Church. The remaining half of the area is intended for development with high-quality office, lodging, retail, and residential uses that respect the history of the adjacent Guasti Winery. The MU-3 zoning district is consistent with and implements the Guasti Mixed Use land use designation of the Policy Plan component of The Ontario Plan.

3. MU-6 (East Holt Mixed Use) Zoning District. The MU-6 zoning district is hereby established to accommodate the intensification of the Holt Boulevard Corridor with low-rise (up to 5 stories) buildings housing a mixture of retail and office uses at a development intensity of up to 1.0 FAR and 2.0 FAR, respectively, and residential uses at a density of 14 to 40 DU/AC. The intent of this zoning district is to create identity and place along the Holt Boulevard Corridor and provide a connection between the Downtown Mixed Use Area and the Ontario Airport Metro Center. The MU-6 zoning district is consistent with and implements the Holt Mixed Use land use designation of the Policy Plan component of The Ontario Plan.

d residential uses at a density of 14 to 40 DU/AC. The intent of this zoning district is to create identity and place along the Holt Boulevard Corridor and provide a connection between the Downtown Mixed Use Area and the Ontario Airport Metro Center. The MU-6 zoning district is consistent with and implements the Holt Mixed Use land use designation of the Policy Plan component of The Ontario Plan.

4. MU-8B (Mountain/Fourth Mixed Use) Zoning District. The MU-8B zoning district is hereby established to accommodate a low-rise (up to 5 stories) mixture of retail uses at an intensity of 1.0 FAR and residential uses at a density of 20 to 75 DU/AC, that will create identity and place along the Mountain Avenue corridor and serve the surrounding residents. The MU-8B zoning district

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is consistent with and implements the Mountain/Fourth Mixed Use Neighborhood Activity Hub land use designation of the Policy Plan component of The Ontario Plan.

5. MU-8C (West Holt Mixed Use) Zoning District. The MU-8C zoning district is hereby established to accommodate the intensification of the Holt Boulevard Corridor with low-rise (up to 5 stories) buildings housing a mixture of retail and office uses at a development intensity of up to 1.0 FAR and 2.0 FAR, respectively, and residential uses at a density of 14 to 40 DU/AC. The intent of this zoning district is to create identity and place along the Holt Boulevard Corridor and provide a connection between the Downtown Mixed Use Area and the Ontario Airport Metro Center. The MU-8C zoning district is consistent with and implements the Holt Mixed Use land use designation of the Policy Plan component of The Ontario Plan.

6. MU-8D (Euclid/Francis Mixed Use) Zoning District. The MU-8D zoning district is hereby established to accommodate a mixture of low-rise (up to 5 stories) retail uses at an intensity of up to 1.0 FAR, and residential uses at a density of 20 to 75 DU/AC, that will create identity and place along the Euclid Avenue corridor. The MU-8D zoning district is consistent with and implements the Euclid/Francis Mixed Use Neighborhood Activity Hub land use designation of the Policy Plan component of The Ontario Plan.

7. MU-8E (Euclid/Walnut Mixed Use) Zoning District. The MU-8E zoning district is hereby established to accommodate a low-rise (up to 5 stories) mixture of retail uses at an intensity of 1.0 FAR and residential uses at a density of 20 to 75 DU/AC, that will create identity and place along the Euclid Avenue corridor and serve the surrounding residents. The MU-8E zoning district is consistent with and implements the Euclid/Walnut Mixed Use Neighborhood Activity Hub land use designation of the Policy Plan component of The Ontario Plan.

D. Industrial Zoning Districts.

1. BP (Business Park) Zoning District. The BP zoning district is hereby established to accommodate industrial-serving commercial and office uses, and very light industrial uses, which may be developed at a maximum intensity of 0.6 FAR. Development within this zoning district is typically multi-tenant in nature; however, single-tenant buildings are not precluded. The BP zoning district is consistent with, and implements, the Business Park land use designation of the Policy Plan component of The Ontario Plan.

2. IP (Industrial Park) Zoning District. The IP zoning district is hereby established to accommodate a combination of commercial activity and light industrial uses, which may be developed at a maximum intensity of 0.6 FAR, and which support services to nearby industrial uses, technology centers, research and development, "clean" industry, and limited manufacturing activities. The IP zoning district is consistent with, and implements, the Business Park land use designation of the Policy Plan component of The Ontario Plan.

3. IL (Light Industrial) Zoning District. The IL zoning district is hereby established to accommodate lighter manufacturing and assembly activities, storage and warehousing activities, and other similar uses developed at a maximum intensity of 0.55 FAR. This zoning district is typically located within 500 feet of residentially zoned properties, public parks and schools, and mixed-use properties having a residential component and is intended to serve as a buffer between residentially zoned areas and heavier industrial zoning districts. Allowed uses are expected to have little or no impacts on nearby residential uses with regard to noise, odor, or hazards. The IL zoning district is consistent with, and implements, the Business Park and Industrial land use designations of the Policy Plan component of The Ontario Plan.

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4. IG (General Industrial) Zoning District. The IG zoning district is hereby established to accommodate a wide range of manufacturing and assembly activities, storage and warehousing activities, and other similar uses developed at a maximum intensity of 0.55 FAR, which desire to locate in larger buildings and on larger sites. This zoning district is generally located away from residentially zoned properties, public parks and schools, and mixed-use properties having a residential component. The IG zoning district is consistent with, and implements, the Industrial land use designation of the Policy Plan component of The Ontario Plan.

intensity of 0.55 FAR, which desire to locate in larger buildings and on larger sites. This zoning district is generally located away from residentially zoned properties, public parks and schools, and mixed-use properties having a residential component. The IG zoning district is consistent with, and implements, the Industrial land use designation of the Policy Plan component of The Ontario Plan.

5. IH (Heavy Industrial) Zoning District. The IH zoning district is hereby established to accommodate heavier manufacturing, assembly, storage, warehousing, and other similar industrial activities, as well as adult uses, which may have negative impacts when located near residential or other sensitive land uses, and which may be developed at a maximum intensity of 0.55 FAR. This zoning district is intended to be located away from residentially zoned properties, public parks and schools, and mixed-use properties having a residential component. The IH zoning district is consistent with, and implements, the Industrial land use designation of the Policy Plan component of The Ontario Plan.

E. Specialized Use Zoning Districts.

1. CIV (Civic) Zoning District. The CIV zoning district is hereby established to accommodate permanent public facilities such as City Hall, public libraries, museums, public and private schools and colleges/universities, police and fire stations, and other similar facilities that require significant public investment and are utilized by the public. The CIV zoning district is consistent with, and implements, all land use designation of the Policy Plan component of The Ontario Plan.

2. MHP (Mobile Home Park) Zoning District. The MHP zoning district is hereby established to accommodate communities consisting of mobile homes and manufactured housing at a density range of 5.1 to 11.0 dwelling units per acre. The MHP zoning district is consistent with, and implements, the Low-Medium Density Residential land use designation of the Policy Plan component of The Ontario Plan.

3. ONT (Ontario International Airport) Zoning District. The ONT zoning district is hereby established to accommodate Ontario International Airport and surrounding properties directly impacted by airport operations. This zoning district includes uses such as airport terminals (including commercial and service uses related to the terminals), car rental agencies, and airportrelated industrial, and delivery uses developed at a maximum overall zoning district intensity of 0.55 FAR. The ONT zoning district is consistent with, and implements, the Ontario International Airport land use designation of the Policy Plan component of The Ontario Plan.

4. OS-C (Open Space-Cemetery) Zoning District. The OS-C zoning district is hereby established to accommodate cemetery sites. Cemeteries provide visual open space, but not recreational opportunities, and have unique characteristics and activities that warrant a separate zoning designation to address their operational characteristics. The OS-C zoning district is consistent with, and implements, the Open Space-Nonrecreation land use designation of the Policy Plan component of The Ontario Plan.

accommodate cemetery sites. Cemeteries provide visual open space, but not recreational opportunities, and have unique characteristics and activities that warrant a separate zoning designation to address their operational characteristics. The OS-C zoning district is consistent with, and implements, the Open Space-Nonrecreation land use designation of the Policy Plan component of The Ontario Plan.

5. OS-R (Open Space-Recreation) Zoning District. The OS-R zoning district is hereby established to accommodate open space uses such as public parks and recreation centers. The OS-R zoning district is consistent with, and implements, the Open Space-Parkland and Open Space-Water land use designation of the Policy Plan component of The Ontario Plan.

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6. PUD (Planned Unit Development) Zoning District. The PUD zoning district is hereby established to accommodate projects that require master plan approval pursuant to The Ontario Plan Policy Plan, which focuses on the character of the development, relationship of uses, public and private access, parking, pedestrian facilities, building form, integration with the roadways and pedestrian ways, public spaces, landscaping, amenities, and unique product types. The PUD zoning district is consistent with, and implements, all land use designation of the Policy Plan component of The Ontario Plan.

7. RC (Rail Corridor) Zoning District. The RC zoning district is hereby established to accommodate permanent rail or fixed transit corridors through the City and includes stations and ancillary facilities, railroad maintenance yards, and construction storage yards. The RC zoning district is consistent with, and implements, the Railroad land use designation of the Policy Plan component of The Ontario Plan.

8. SP (Specific Plan) Zoning District. The SP zoning district is hereby established to accommodate the adoption of Specific Plans pursuant to this Development Code. The SP zoning district is consistent with, and implements, all land use designation of the Policy Plan component of The Ontario Plan.

9. UC (Utilities Corridor) Zoning District. The UC zoning district is hereby established to accommodate flood control channels, retention and detention basins, electrical transmission corridors and landfills, and may include ancillary recreational facilities, such as public trails in conjunction with the primary use of the site. The UC zoning district is consistent with, and implements, the Open Space-Nonrecreational land use designation of the Policy Plan component of The Ontario Plan.

F. Overlay Districts.

1. AG (Agriculture) Overlay Zoning District. The AG Overlay zoning district is hereby established to accommodate the continuation of agricultural uses within the City, on an interim basis, until such time that development is slated to occur consistent with the Policy Plan component of The Ontario Plan and the underlying zoning district. Furthermore, it is the intent of this overlay zoning district is to permit continued agricultural use of properties or to establish general agricultural uses, including dairies, which are appropriate for areas of concentrated agricultural uses. The AG Overlay zoning district is consistent with, and implements, all land use designation of the Policy Plan component of The Ontario Plan.

2. EA (Euclid Avenue) Overlay Zoning District. The EA Overlay zoning district is intended to: [i] recognize, protect, and enhance the visual character and quality of Euclid Avenue as a major scenic and historic resource of the City; [ii] recognize and protect Euclid Avenue's position on the National Register of Historic Places; and [iii] recognize Euclid Avenue as a major contributor to Ontario's historic downtown area.

3. ES (Emergency Shelter) Overlay Zoning District. The ES Overlay zoning district is hereby established to accommodate Emergency Shelters, Supportive Housing, Transitional Housing, and Transitional Living Centers pursuant to the Housing Element of the Policy Plan component of The Ontario Plan, and GC Section 65583. The ES overlay district is consistent with, and implements, all land use designations of the Policy Plan component of The Ontario Plan.

4. MTC (Multimodal Transit Center) Overlay Zoning District. The MTC Overlay zoning district is hereby established to allow for the interim use of existing industrial buildings located in the Multimodal Mixed-Use land use designation, as shown on the Land Use Plan (Exhibit LU-01) of

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The Ontario Plan, with general industrial land uses allowed in the IG zoning district pursuant to Table 5.02-1 (Land Use Matrix) of this Division, while at the same time preserving the City's vision for the development of a multi-modal transit center and supporting mixed-use development. The MTC Overlay zoning district is consistent with, and implements, the Multimodal Mixed-Use land use designation of the Policy Plan component of The Ontario Plan.

llowed in the IG zoning district pursuant to Table 5.02-1 (Land Use Matrix) of this Division, while at the same time preserving the City's vision for the development of a multi-modal transit center and supporting mixed-use development. The MTC Overlay zoning district is consistent with, and implements, the Multimodal Mixed-Use land use designation of the Policy Plan component of The Ontario Plan.

5. ICC (Interim Community Commercial) Overlay Zoning District. The ICC Overlay zoning district is hereby established to allow for the interim use of existing commercial buildings, which are nonconforming as to zoning and/or land use. Property in the ICC Overlay zoning district shall be subject to the land use requirements of the CN and CC zoning districts, as shown in Table 5.02-1 (Land Use Matrix) of this Division, while at the same time preserving the City's long term vision for the development and use of property consistent with the underlying Policy Plan (general plan) land use designation. The ICC Overlay zoning district is consistent with, and implements, all land use designations of the Policy Plan component of The Ontario Plan.

6. AH (Affordable Housing) Overlay Zoning District. The AH Overlay zoning district is hereby established to facilitate housing opportunities within the City of Ontario by means of the implementation of required rezone programs pursuant to the City's adopted Housing Element, where required for compliance with State Housing Element law.

7. CNO (Chino Airport) Overlay Zoning District. The CNO zoning district is hereby established to: [i] delineate the Airport Influence Area (AIA) for Chino Airport as the boundary of the CNO Overlay zoning district; [ii] adopt an airport land use compatibility plan for Chino Airport that is consistent with the 2011 Caltrans Airport Land Use Planning Handbook solely to address impacts within the boundaries of the City of Ontario; and [iii] promote compatibility between Chino Airport and the land uses that surround it. Property in the CNO Overlay zoning district shall be subject to the requirements of Reference I (Chino Airport Land Use Compatibility Plan) of this Development Code, which includes maps, criteria, and policy language to guide development within the Chino Airport AIA.

The City Council hereby adopts the official zoning map of the City, entitled "City of Ontario Zoning Map" (hereafter referred to as "Zoning Map"). The Zoning Map is hereby incorporated into this Development Code by reference and shall be maintained on file in the office of the Planning Department. The boundaries of the zones as set forth on the Zoning Map are confirmed, adopted, and established, and may be amended pursuant to the requirements of Section 4.01.040 (Zone Changes) of this Development Code.

When uncertainty exists as to the boundary of a district shown on the Zoning Map, the following regulations shall control:

A. Where a boundary line is indicated as following a street or alley, the boundary line shall be construed as following the centerline of the right-of-way;

B. Where a boundary line follows or coincides approximately with a lot line or property ownership line, the boundary line shall be construed as following the lot line or boundary line;

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C. Where the boundary line is not indicated as following a street or alley and does not follow or coincide approximately with a lot line or property ownership line, unless specifically indicated by dimensions on the Zoning Map, the boundary line shall be determined based on the scale of the Zoning Map;

D. Where uncertainty exists, the Zoning Administrator shall determine in writing, the location of the boundary in question, giving due consideration to the location indicated on the Zoning Map, the objectives of the Development Code, and the specific purposes for each district; and

E. Where a street or alley is officially vacated or abandoned, the area within the area of vacated street or alley on each side of the centerline shall be classified in the same zoning district as the adjoining property.

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