13.10.342 Uses in industrial districts.

(a) Principal Permitted Uses.
1. In the Coastal Zone, the principal permitted uses in the Industrial Districts shall be as follows:
“M-1” - small light industrial facilities
“M-2” - light industrial facilities in general
“M-3” - mining, agriculture, and timber harvesting including appurtenant accessory uses and structures.
2. Principal permitted uses are all denoted as uses requiring a Level IV or lower Approval unless otherwise denoted with the letter “P” in the Industrial Uses Chart in subsection (b) of this section. In the Coastal Zone, actions to approve uses other than principal permitted uses are appealable to the Coastal Commission in accordance with the provisions of Chapter 13.20 of the County Code relating to Coastal Zone permits, and in some cases pursuant to Chapter 13.20, any development is appealable.
(b) Allowed Uses.
(1) The uses allowed in the industrial districts shall be as provided in the following Industrial Uses chart below. A discretionary approval for an allowed use is known as a “Use Approval” and is given as part of a “Development Permit” for a particular use. The type of permit processing review, or “Approval Level,” required for each use in each of the industrial zone districts is indicated in the chart. The processing procedures for Development Permits and for the various Approval Levels are detailed in Chapter 18.10 Permit and Approval Procedures. The Approval Levels given in this chart for structures incorporate the Approval Levels necessary for processing a building permit for the structure. Higher Approval Levels than those listed in this chart for a particular use may be required if a project requires other concurrent Approvals, according to Section 18.10.123. For purposes of this Chapter, a Mining Approval is a Use Approval.
(2) Timber harvesting and associated operations, requiring approval of a Timber Harvesting Plan by the California Department of Forestry, are not allowed uses in the Industrial zone districts, except in the M-3 zone district pursuant to the Uses Chart.

P	=	Principal permitted use (see Section 13.10.342(a)); no use approval necessary if “P” appears alone
A	=	Use must be ancillary and incidental to a principal permitted use on the site
F	=	Subject to the additional findings require in Section 13.10.345(b)
M	=	Mining Permit required (Level VI; see Chapter 16.54 - MINING REGULATIONS)
1	=	Approval Level I (administrative, no plans required)
2	=	Approval Level II (administrative, plans required)
3	=	Approval Level III (administrative, field visit required)
4	=	Approval Level IV (administrative, public notice required)
5	=	Approval Level V (public hearing by Zoning Administrator required)
6	=	Approval Level VI (public hearing by Planning Commission required)
7	=	Approval Level VII (public hearing by Planning Commission and Board of Supervisors required)
—	=	Use not allowed in this zone district
*	=	Level IV for projects of less than 2000 square feet;
		Level V for projects of 2,000 to 20,000 square feet;
		Level VI for projects of over 20,000 square feet

USES	M-1	M-2	M-3

Accessory structures, non-habitable, subject to Section 13.10.611, including:	4/5/6*	4/5/6*	4/5/6*
Outdoor storage, incidental, screened from public streets Parking, on-site, developed in accordance with Section 13.10.550 et seq.
Signs in accordance with Section 13.10.581 Storage, incidental, of non-hazardous materials within an enclosed structure.

Accessory structures, habitable, subject to Section 13.10.611, including:	4	4	4
Watchman’s living quarters, one, located on the same site and incidental to an allowed use

Agricultural Service Establishments	5	5	—

Automobile services, including:	4/5/6*	4/5/6*	—
Automobile service stations
Automobile and truck repair shops, including body work, painting, and overhauling minimum Level 5 required if operated partly out-of-doors and not screened from public streets)
Gasoline stations
Tire retreading and recapping services

Commercial Services, general, indoor, as allowed in the C-4 District (see chart, Section 13.10.332(b))	4/5/6*	4/5/6*	—

Commercial Services, general, involving outdoor use or heavy trucking, as allowed in the C-4 District (see chart Section 13.10.332(b)), and also including:	4/5/6*	4/5/6*	—
Blacksmith shops
Boat building (not including ship building)

Community facilities, such as:	4/5/6*	4/5/6*	4/5/6*
Bus depots and transit stations, including repair or servicing of vehicles
Community energy systems (subject to the provisions of Sec. 13.10.661 and .700-E definition)
Utilities, public, structures and uses, including:
public service pumping stations;
public utility service yards;
power substations and transmission facilities;
energy facilities (see Sec. 13.10.700-E definition)

Hatcheries, poultry (see Section 13.10.700-H definition)	4/5/6*	—	—

Industry, heavy, involving hazardous chemicals or possible adverse impacts beyond the site, such as:	4/5/6*f	4/5/6*	—
Manufacturing of hazardous chemical products including: acetylene, aniline dyes, ammonia, carbide, caustic soda, cellulose, chlorine, cleaning and polishing preparations, creosote, exterminating agents, hydrogen and oxygen, industrial alcohol, nitrating potash, pyroxyline, rayon yarn, and carbolic, hydrochloric, picric, and sulphuric acids;
Manufacture of: asphalt, cement, explosives, fertilizer, film, fireworks, fish products, fuel briquettes, gelatine, glue, lard, paint products, paper, plaster, rubber, soap, vinyl floor covering
Fat rendering
Foundries, metal smelting, reduction, refining, alloying, rolling, drop forges
Incinerators
Petroleum products refining
Rubber processing
Steam plants
Slaughter houses, stockyards
Stone mills
Storage of potentially objectionable or hazardous materials including: explosives, fireworks, flammable liquids, gas, junk yards, manure, petroleum products, slag piles, rawhides, used building materials.

Tanneries
Wood processing, including planing mills, sawmills and treatment plants
Wood pulp reduction and distillation

Manufacturing, light, and assembly, such as:	4/5/6*	4/5/6*	—
Manufacturing, assembling, compounding, packaging, and processing of articles of merchandise from previously prepared materials

Manufacturing and assembly of:
Appliances, medical and orthopedic
Appliances, small electric, such as lighting fixtures, irons, fans, toasters and electric toys (not including refrigerators, washing machines, dryers, dishwashers, and similar large appliances)
Ceramic products, small, such as pottery, figurines, and small glazed tile, using only previously pulverized clay and kilns fired only by electricity or gas
Cosmetics, perfumed toilet soap (not including refining or rendering of fats or oils), or toiletries
Electrical equipment, such as radio and television receivers, phonographs and home motion picture equipment (not including electrical machinery)
Electrical supplies, such as coils, condensers, crystal holders, insulation, lamps, switches, and wire cable assembly, provided that no noxious or offensive fumes, odors or particles are released outside the building.
Electronics equipment and precision instruments, involving assembly of previously prepared materials
Ice
Instruments: scientific, medical, dental, and drafting
Mattresses
Musical instruments
Optical goods
Photographic equipment (except film) and cameras
Signs, electric and neon, billboards, commercial advertising structures
Sheet metal products, light, including heating and ventilating ducts, cornices and eaves
Watches and clocks
Manufactured, fabrication, and assembly of the following products, provided that no environmental hazard is created: products of cement, ceramics, non-hazardous chemicals, clay, graphite, leather, metal, paper, rubber, stone, wood	4/5/6*	4/5/6*	—
aircraft
automobiles
batteries
boilers
boxes
building materials
business machines
cans
candles
carpets
feed
fibers
firearms
glass
machinery
metal alloys: cable,
foil sheets, and wire
wire
motors and generators
railroad equipment

INDUSTRIAL USES CHART

(See Reference Chart at beginning of Section 13.10.342)

USES	M-1	M-2	M-3

Manufacturing, heavy, and processing, such as: (continued)

Manufacturing and processing of:

electrical appliances
fabrics
textiles, knitting and hosiery mills
tires
Manufacturing involving chemicals, such as:
Drugs and pharmaceuticals, manufacturing, assembling, compounding, packaging and processing of
Laboratories
Photographic developing and printing plants
Textile bleaching and dyeing
Electronics, manufacture of such products as semiconductors or other components involving hazardous substances
Food processing, and packaging, including:
Bottling works
Breweries, distilleries and wineries
Cold storage plants
Dairy products plants
Foods and food products, manufacturing, canning and packing, or including fruits and vegetables (not including fish and meat products, pickles, sauerkraut, vinegar or yeast, or refining fats or oils)
Metal products, manufacturing of, such as:
Cutlery, hardware and hand tools; die and pattern making; metal stamping and extrusion of small products such as costume jewelry, pins and needles, razor blades, bottle caps, buttons and kitchen utensils
Machine shops (involving the use of drop hammers, automatic screw machines or punch presses with a rated capacity of over 20 tons)
Metal casting, painting and sandblasting
Metal finishing and plating
Welding shops
Woodworking, such as:
Cabinet-making shops
Furniture manufacture
Woodworking shops, sash and door manufacturing, including only incidental mill work, operated within a completely enclosed structure
Mining uses, such as

Mining, quarrying, and commercial extraction of rock, sand, gravel, earth, clay and similar materials, and the storage, stockpiling, processing, distribution and sale thereof; including the installation and operation of facilities and apparatus to process, store, and ship rock, sand, gravel and other mineral products; shops and garages for the repair and maintenance of equipment and warehouses for the storage of equipment or supplies as are necessary to conduct the uses permitted.	—	—	MP

Mine reclamation or reuse, uses and operations related to, such as backfilling with inert materials

Industrial uses related to processing or fabrication of a finished product from quarried or mined materials, where associated with the principal use of the property for quarry purposes, located on the same site, and included in the provisions of a Mining Permit, including:

Concrete batching plants
Manufacture of cement
Manufacture of concrete products and pressed structural units in conjunction and concurrent with excavation on the site
Mixing plants for asphaltic concrete
Other similar uses relating to the extraction or processing of rock, sand, gravel, or minerals

Mine-related concurrent uses, such as: sanitary land fills; septage disposal; retail sales of mine related products; offices; public utility facilities; fire protection facilities

Mine site interim uses, such as:
1) Agricultural uses subject to the regulations of the “A” District;	Allowed at Approval Levels required by Section 13.10.312

2) Timber harvesting	—	—	P

Motor vehicle wrecking yards	4/5/6*f	4/5/6*	—

Mushroom growing in structures	4/5/6*f	4/5/6*	—

Offices, incidental to an allowed use	4/5/6*	4/5/6*	4/5/6*

Railroad stations	4/5/6*	4/5/6*	—

Railroad freight stations, repair shops, and yards	4/5/6*	4/5/6*	—

Residential Uses:

Repair, alteration, expansion or reconstruction of dwelling units and accessory structures which are consistent with the General Plan, subject to Sections 13.10.260 and 13.10.261 Nonconforming Uses	BP-6	BP-6	BP-6

Repair, alteration, expansion or reconstruction of dwelling units and accessory structures which are inconsistent with the General Plan, subject to Sections 13.10.260 and 13.10.261 Nonconforming Uses	BP-6	BP-6	BP-6

Retail sales, incidental to an allowed use	4/5/6*	4/5/6*	4/5/6*

Temporary uses (see Section 13.10.700 definition), such as:	3	3	—

Carnivals and circuses
Christmas tree sales lots
Outdoor sales, not to exceed 4 per year on any site

Warehouses (except for the storage of flammable liquids), storage and baling of metal, paper or rags within an enclosed structure	4/5/6*	4/5/6*	4/5/6*

Wireless Communications Facilities, subject to Sections 13.10.660 through 13.10.668 inclusive	5	5	5