Chapter 32 — HIGH-PILED COMBUSTIBLE STORAGE
Section 3203 — COMMODITY CLASSIFICATION
2025 California Fire Code (Title 24, Part 9) · 2025 edition · updated 2026-07-29 · California
Italicized text is a California amendment to the model code, as printed in the official publication.
3203.1 Classification of commodities. ¶
Commodities shall be classified as Class I, II, III, IV or high hazard in accordance with Sections 3203.2 through 3203.10.3. Materials listed within each commodity classification are assumed to be unmodified for improved combustibility characteristics. Use of flame-retarding modifiers or the physical form of the material could change the classification.
3203.2 Class I commodities. ¶
Class I commodities are noncombustible products in ordinary corrugated cartons with or without single-thickness dividers, or in ordinary paper wrappings with or without wood pallets. The amount of Group A plastics shall be limited in accordance with Section 3203.9.
3203.3 Class II commodities. ¶
Class II commodities are Class I products in slatted wooden crates, solid wooden boxes, multiplethickness paperboard cartons or equivalent combustible packaging material with or without wood pallets. The amount of Group A plastics shall be limited in accordance with Section 3203.9.
3203.4 Class III commodities. ¶
Class III commodities are products of wood, paper, natural fiber cloth, or Group C plastics or products thereof, with or without wood pallets. The amount of Group A plastics shall be limited in accordance with Section 3203.9.
3203.5 Class IV commodities. ¶
Class IV commodities are Class I, II or III products containing Group A plastics in ordinary corrugated cartons; Class I, II and III products with Group A plastic packaging; Group B plastics; and free-flowing Group A plastics with or without wood pallets. The total amount of nonfree-flowing Group A plastics shall be limited in accordance with Section 3203.9.
3203.6 High-hazard commodities. ¶
High-hazard commodities are products presenting special fire hazards beyond those of Class I, II, III or IV. Group A plastics not otherwise classified are included in this class.
3203.7 Classification of plastics. ¶
Plastics shall be designated as Group A, B or C in accordance with Sections 3203.7.1 through 3203.7.3.
3203.7.1 Group A plastics. Group A plastics are plastic materials having a heat of combustion that is much higher than that of ordinary combustibles, and a burning rate higher than that of Group B plastics.
3203.7.2 Group B plastics. Group B plastics are plastic materials having a heat of combustion and a burning rate higher than that of ordinary combustibles, but not as high as those of Group A plastics.
3203.7.3 Group C plastics. Group C plastics are plastic materials having a heat of combustion and a burning rate similar to those of ordinary combustibles.
3203.8 Examples of commodity classification. ¶
Table 3203.8 shall be used to determine the commodity classification for various products and materials. Products not found in the list shall be classified based on the classification descriptions in Sections 3203.2 through 3203.6 and the products they most nearly represent in Table 3203.8. Table 3203.8 considers the product and the packaging if listed with the item. Products with additional packaging consisting of Group A plastics shall be classified in accordance with Section 3203.9.
The commodity classifications are based on products with, or without, wood pallets. Where plastic pallets are used, the commodity classification shall be modified in accordance with Section 3203.10.
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TABLE 3203.8—EXAMPLES OF COMMODITY CLASSIFICATION
| PRODUCT CATEGORY |
PRODUCT | CLASSIFICATION |
|---|---|---|
| Aerosols | Level 1 | Class III (See Chapter 51) |
| Aerosols | Level 2 | Class IV (See Chapter 51) |
| Aerosols | Level 3 | High-hazard (See Chapter 51) |
| Batteries | Dry cells (excludes lithium, lithium-ion and other similar exotic metals or combustible electro- lyte); without blister packing (if blister packed, refer to the commodity classification definitions) |
Class I |
| Batteries | Dry cells (nonlithium or similar exotic metals); in blister packing; cartoned | Class II |
| Batteries | Vehicle; any size (for example, automobile or truck); empty plastic casing | High-hazard (Group A unexpanded) |
| Batteries | Vehicle; large (in other words, truck or larger); dry or wet cells (excludes lithium-ion and other cells containing combustible electrolytes) |
High-hazard (Group A unexpanded) |
| Batteries | Vehicle; small (for example, automobile); wet cells (excludes lithium-ion and other cells containing combustible electrolytes) |
Class I |
| Batteries | Lithium-ion_ (excludes lithium-ion installed in the equipment or appliance it powers)_ | High-hazard |
| Biomass | Circular baled corn stover | Class IV |
| Biomass | Rectangular baled corn stover | Class III |
| Biomass | Rectangular baled switchgrass | High-hazard |
| Empty containers | Noncombustible | Class I |
| Empty containers | PET | Class IV |
| Empty containers | Rigid plastic (not including PET) | High-hazard (Group A unexpanded) |
| Empty containers | Wood; solid sided (such as crates, boxes) | Class II |
| Film rolls, including photographic |
Polypropylene, polyester, polyethylene; rolled on any reel type | High-hazard (Group A unexpanded) |
| Film rolls, including photographic |
35 mm metal film cartridges in polyethylene cans; cartoned | Class III |
| Film rolls, including photographic |
Motion picture or bulk rolls in polycarbonate, polyethylene or in metal cans; polyethylene bagged; cartoned |
Class II |
| Film rolls, including photographic |
Rolls in polycarbonate plastic cassettes; cartoned | Class IV |
| Film rolls, including photographic |
Photographic paper; sheets; bagged in polyethylene; cartoned | Class III |
| Flammable and combustible liquids |
Glycol in combustible containers (50 percent or greater) | High-hazard |
| Flammable and combustible liquids |
Lacquers, which dry by solvent evaporation, in metal cans or cartons | High-hazard |
| Flammable and combustible liquids |
Lighters; butane; blister-packed; cartoned | High-hazard (Group A unexpanded) |
| Flammable and combustible liquids |
Over 20- and up to 50-percent alcohol (such as alcoholic beverages, hair spray); up to 1-gallon glass bottles or jars; in racks; cartoned |
Class III |
| Flammable and combustible liquids |
Over 20- and up to 50-percent alcohol (such as alcoholic beverages, hair spray); up to 1-gallon glass bottles or jars; palletized; cartoned |
Class IV |
| Flammable and combustible liquids |
Over 20- and up to 50-percent alcohol (such as alcoholic beverages, hair spray); up to 1-gallon plastic bottles or jars; cartoned |
Class IV |
| Flammable and combustible liquids |
Up to 20-percent alcohol (such as alcoholic beverages, flavoring extracts); greater than 5-gallon plastic containers with wall thickness greater than 0.25 inch |
High-hazard (Group A unexpanded) |
| Flammable and combustible liquids |
Up to 20-percent alcohol (such as alcoholic beverages, flavoring extracts); metal, glass or ceramic containers |
Class I |
| Flammable and combustible liquids |
Up to 20-percent alcohol (such as alcoholic beverages, flavoring extracts); plastic containers greater than 5 gallons and wall thickness up to1/4 inch |
Class II |
| Flammable and combustible liquids |
Up to 20-percent alcohol (such as alcoholic beverages, flavoring extracts); up to 5-gallon plastic bottles or jars |
Class I |
| Flammable and combustible liquids |
Up to 20-percent alcohol (such as alcoholic beverages, flavoring extracts); wood containers | Class II |
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TABLE 3203.8—EXAMPLES OF COMMODITY CLASSIFICATION—continued
| PRODUCT CATEGORY |
PRODUCT | CLASSIFICATION |
|---|---|---|
| Flammable and combustible liquids— continued |
Lubricating or hydraulic fluid in plastic containers | High-hazard |
| Flammable and combustible liquids— continued |
Nail polish; up to 2-ounce glass bottles or jars; cartoned | Class IV |
| Flammable and combustible liquids— continued |
Nail polish; up to 2-ounce plastic bottles or jars; cartoned | High-hazard (Group A unexpanded) |
| Flammable solids | Except solid combustible metals | High-hazard |
| Food products, frozen | In nonwaxed or nonplastic packaging | Class I |
| Food products, frozen | In plastic trays | Class III |
| Food products, frozen | In waxed or plastic-coated paper packaging | Class II |
| Food products, nonfrozen |
Butter (stick or whipped spread) or margarine (up to 50-percent oil) | Class III |
| Food products, nonfrozen |
Butter; whipped spread | Class III |
| Food products, nonfrozen |
Dry foods (such as baked goods, candy, cereals, cheese, chocolate, cocoa, coffee, grains, granu- lar sugar, nuts); bagged or cartoned |
Class III |
| Food products, nonfrozen |
Foods (such as coffee, fish products, fruit, meat products, nuts, poultry); metal cans | Class I |
| Food products, nonfrozen |
Fruits and vegetables (noncombustible semiliquid); crushed; plastic containers up to 5 gallons | Class I |
| Food products, nonfrozen |
Fruits and vegetables; fresh; wood spacers, nonplastic trays or containers | Class I |
| Food products, nonfrozen |
Margarine; over 50- and up to 80-percent oil | High-hazard (Group A unexpanded) |
| Food products, nonfrozen |
Meat; fresh; no plastic packaging; uncartoned | Class I |
| Food products, nonfrozen |
Meat; fresh; no plastic packaging; cartoned | Class II |
| Food products, nonfrozen |
Meat; fresh; plastic tray | Class III |
| Food products, nonfrozen |
Milk; any container; stored in solid plastic crates | High-hazard (Group A unexpanded) |
| Food products, nonfrozen |
Milk; paper containers, or plastic bottles or jars up to 5 gallons | Class I |
| Food products, nonfrozen |
Salt; bagged | Class I |
| Food products, nonfrozen |
Salt; cartoned | Class II |
| Food products, nonfrozen |
Snack foods (such as potato chips); plasticized aluminum bags; cartoned | High-hazard (Group A unexpanded) |
| Food products, nonfrozen |
Syrup; wooden container | Class II |
| Furniture and bedding |
Box spring; standard (minimal plastic materials) | Class III |
| Furniture and bedding |
Box spring; wrapped in plastic cover | Class IV |
| Furniture and bedding |
Furniture and bedding; with foam cushioning | High-hazard (Group A expanded) |
| Furniture and bedding |
Furniture; metal (such as file cabinets or desks with minimal plastic trim); cartoned | Class I |
| Furniture and bedding |
Furniture; wood (such as doors, windows, cabinets); no plastic coverings or foam cushioning | Class III |
| Furniture and bedding |
Furniture; wood; plastic coverings; nonexpanded plastic trim | Class IV |
| Furniture and bedding |
Mattress; foam (in finished form) | High-hazard (Group A expanded) |
| Furniture and bedding |
Pillows, foam rubber and foam plastics | High-hazard (Group A expanded) |
| Housing materials and appliances |
Appliances; major (for example, stoves, refrigerators); no appreciable plastic interior or exterior trim; cartoned |
Class II |
| Housing materials and appliances |
Appliances; major (for example, stoves, refrigerators); no appreciable plastic interior or exterior trim; uncartoned |
Class I |
| Housing materials and appliances |
Appliances; no appreciable plastic exterior trim (interior of unit can have appreciable plastic) | Class III |
| Housing materials and appliances |
Carpet tiles; cartoned | High-hazard (Group A unexpanded) |
| Housing materials and appliances |
Fiberglass insulation; paper-backed rolls; bagged or unbagged | Class IV |
| Housing materials and appliances |
Floor coverings; vinyl, stacked tiles | Class IV |
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TABLE 3203.8—EXAMPLES OF COMMODITY CLASSIFICATION—continued
| PRODUCT CATEGORY |
PRODUCT | CLASSIFICATION |
|---|---|---|
| Housing materials and appliances— continued |
Floor coverings; vinyl; rolled | High-hazard (Group A unexpanded) |
| Housing materials and appliances— continued |
Gypsum board | Class I |
| Housing materials and appliances— continued |
Housing materials (such as sinks, countertops); noncombustible, cartoned or crated | Class II |
| Housing materials and appliances— continued |
Light fixtures; nonplastic; cartoned | Class II |
| Housing materials and appliances— continued |
Paint; oil-based; friction-top metal containers; cartoned | Class IV |
| Housing materials and appliances— continued |
Paint; water-based (latex); friction-top metal containers; cartoned | Class I |
| Housing materials and appliances— continued |
Paper; asphalt; rolled, horizontal or vertical storage | High-hazard |
| Housing materials and appliances— continued |
Roofing shingles; asphalt-coated fiberglass | Class III |
| Housing materials and appliances— continued |
Roofing shingles; asphalt-impregnated felt | Class IV |
| Miscellaneous | Ammunition; small arms and shotgun; cartoned | Class IV |
| Miscellaneous | Charcoal; mineral-spirit impregnated; bagged | High-hazard (Group A expanded) |
| Miscellaneous | Charcoal; standard (nonmineral-spirit impregnated); bagged | Class III |
| Miscellaneous | Fertilizers; nitrates; bagged | Class II |
| Miscellaneous | Fertilizers; phosphates; bagged | Class I |
| Miscellaneous | Leather hides; baled | Class II |
| Miscellaneous | Leather; finished products (such as shoes, jackets, gloves, bags, luggage, belts) | Class III |
| Miscellaneous | Motors; electric | Class I |
| Miscellaneous | Pallets and flats that are idle; combustible | High-hazard |
| Miscellaneous | Shock absorbers; metal dust cover | Class II |
| Miscellaneous | Shock absorbers; plastic dust cover | Class III |
| Miscellaneous | Skis; wood | Class III |
| Miscellaneous | Skis; composite materials (such as plastic, fiberglass, foam) | Class IV |
| Miscellaneous | Tobacco products; cartoned | Class III |
| Miscellaneous | Toys; stuffed; foam or synthetic | High-hazard (Group A expanded) |
| Miscellaneous | Transformer; dry or empty (in other words, void of oil) | Class I |
| Noncombustible liquids |
Liquids or semiliquids; PET containers greater than 5 gallons having a nominal wall thickness greater than1/4 inch |
Class IV |
| Noncombustible liquids |
Liquids or semiliquids; PET containers up to 5 gallons having a nominal wall thickness less than 1/4 inch |
Class I |
| Noncombustible liquids |
Liquids or semiliquids (such as crushed fruits and vegetables); plastic containers up to 5-gallon capacity |
Class I |
| Noncombustible liquids |
Liquids or semiliquids; plastic (except PET) containers greater than 5-gallon capacity having a nominal wall thickness greater than1/4 inch |
High-hazard (Group A unexpanded) |
| Noncombustible liquids |
Liquids or semiliquids; plastic (except PET) containers greater than 5-gallon capacity having a nominal wall thickness up to1/4 inch |
Class II |
| Noncombustible liquids |
Liquids; cardboard drink boxes, plastic coated, wax coated, and/or aluminum lined; uncar- toned or on corrugated carton trays with plastic sheeting |
Class I |
| Noncombustible liquids |
Liquids; cardboard drink boxes, plastic coated, wax coated, and/or aluminum lined; stored in plastic containers |
High-hazard (Group A unexpanded) |
| Noncombustible liquids |
Liquids; glass bottles or jars; cartoned | Class I |
| Noncombustible liquids |
Liquids; less than 5-gallon plastic containers | Class I |
| Noncombustible liquids |
Liquids; pharmaceuticals (nonflammable); glass bottles or jars; cartoned | Class II |
| Noncombustible liquids |
Liquids; plastic bottles or jars; stored in open or solid plastic crates | High-hazard (Group A unexpanded) |
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TABLE 3203.8—EXAMPLES OF COMMODITY CLASSIFICATION—continued
| PRODUCT CATEGORY |
PRODUCT | CLASSIFICATION |
|---|---|---|
| Paper products | Book signatures (paper part of book without hard cover) | Class II |
| Paper products | Cartons (such as cardboard flats); corrugated; partially assembled | Class IV |
| Paper products | Cartons (such as cardboard flats); corrugated; unassembled in neat piles | Class III |
| Paper products | Cartons; wax coated, single-walled corrugated | High-hazard (Group A unexpanded) |
| Paper products | Cellulosic paper products; nonwax coated (such as books, cardboard games, cartoned tissue products, magazines, newspapers, paper cups, paper plates, paper towels, plastic-coated paper food containers, stationary) |
Class III |
| Paper products | Cellulosic paper products; wax coated (such as paper plates, cups); loosely packed; cartoned | High-hazard (Group A unexpanded) |
| Paper products | Cellulosic paper products; wax coated (such as paper plates, cups); nested; cartoned | Class IV |
| Paper products | Matches; paper-type; cartoned | Class IV |
| Paper products | Matches; wooden; cartoned | High-hazard (Group A unexpanded) |
| Paper products | Rolled; lightweight; in storage racks | Class IV |
| Paper products | Rolled; medium or heavyweight; in storage racks or onside | Class III |
| Paper products | Rolled; in horizontal storage or vertical storage that is banded or protected with an approved wrap |
Class III |
| Paper products | Rolled; in vertical storage that is unbanded or not protected with an approved wrap | High-hazard |
| Paper products | Tissue products; plastic wrapped; cartoned | Class III |
| Paper products | Tissue products; plastic wrapped; uncartoned | High-hazard (Group A unexpanded) |
| Plastic, rubber | ABS (Acrylonitrile-butadiene-styrene copolymer) | High-hazard (Group A unexpanded) |
| Plastic, rubber | Acetal (polyformaldehyde) | High-hazard (Group A unexpanded) |
| Plastic, rubber | Acrylic (polymethyl methacrylate) | High-hazard (Group A unexpanded) |
| Plastic, rubber | Automobile bumpers and dashboards | High-hazard (Group A expanded) |
| Plastic, rubber | Butyl rubber | High-hazard (Group A unexpanded) |
| Plastic, rubber | Cellulose acetate | Class IV (Group B plastic) |
| Plastic, rubber | Cellulose acetate butyrate | High-hazard (Group A unexpanded) |
| Plastic, rubber | Chloroprene rubber | Class IV (Group B plastic) |
| Plastic, rubber | Containers; Nonexpanded plastic gridded or solid; collapsed or nested with no air spaces | High-hazard (Group A unexpanded) |
| Plastic, rubber | ECTFE (ethylene-chlorotrifluoroethylene copolymer) | Class IV (Group B plastic) |
| Plastic, rubber | EPDM (ethylene-propylene rubber) | High-hazard (Group A unexpanded) |
| Plastic, rubber | ETFE (ethylene-tetrafluoroethylene copolymer) | Class IV (Group B plastic) |
| Plastic, rubber | Ethyl cellulose | High-hazard (Group A unexpanded) |
| Plastic, rubber | FEP (fluorinated ethylene-propylene copolymer) | Class IV (Group B plastic) |
| Plastic, rubber | FRP (fiberglass-reinforced polyester) | High-hazard (Group A unexpanded) |
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TABLE 3203.8—EXAMPLES OF COMMODITY CLASSIFICATION—continued
| PRODUCT CATEGORY |
PRODUCT | CLASSIFICATION |
|---|---|---|
| Plastic, rubber— continued |
Melamine (melamine formaldehyde) | Class III (Group C plastic) |
| Plastic, rubber— continued |
Nitrile rubber (acrylonitrile-butadiene rubber) | High-hazard (Group A unexpanded) |
| Plastic, rubber— continued |
Nylon (nylon 6, nylon 6/6) | High-hazard (Group A unexpanded) |
| Plastic, rubber— continued |
PCTFE (polychlorotrifluoroethylene) | Class III (Group C plastic) |
| Plastic, rubber— continued |
PET (Polyethylene terephthalate-thermoplastic polyester) | High-hazard (Group A unexpanded) |
| Plastic, rubber— continued |
Phenolic | Class III (Group C plastic) |
| Plastic, rubber— continued |
Plastics; stored in fully closed and solid (no openings) metal containers | Class I |
| Plastic, rubber— continued |
Polybutadiene | High-hazard (Group A unexpanded) |
| Plastic, rubber— continued |
Polycarbonate | High-hazard (Group A unexpanded) |
| Plastic, rubber— continued |
Polyester elastomer | High-hazard (Group A unexpanded) |
| Plastic, rubber— continued |
Polyethylene | High-hazard (Group A unexpanded) |
| Plastic, rubber— continued |
Polypropylene | High-hazard (Group A unexpanded) |
| Plastic, rubber— continued |
Polystyrene; foam products (such as plates, cups) | High-hazard (Group A expanded) |
| Plastic, rubber— continued |
Polystyrene; rigid products | High-hazard (Group A unexpanded) |
| Plastic, rubber— continued |
Polyurethane | High-hazard (Group A expanded) |
| Plastic, rubber— continued |
PTFE (polytetrafluoroethylene) | Class III (Group C plastic) |
| Plastic, rubber— continued |
PVC (polyvinyl chloride) products; plasticizer content 20 percent or less | Class III (Group C plastic) |
| Plastic, rubber— continued |
PVC (polyvinyl chloride) products; plasticizer content greater than 20 percent | High-hazard (Group A unexpanded) |
| Plastic, rubber— continued |
PVC resins; bagged | Class III (Group C plastic) |
| Plastic, rubber— continued |
PVDC (polyvinylidene chloride) | Class III (Group C plastic) |
| Plastic, rubber— continued |
PVDF (polyvinylidene fluoride) | Class III (Group C plastic) |
| Plastic, rubber— continued |
PVF (polyvinyl fluoride) | High-hazard (Group A unexpanded) |
| Plastic, rubber— continued |
Pyroxylin | High-hazard |
| Plastic, rubber— continued |
Rubber; natural in blocks; cartoned | High-hazard (Group A unexpanded) |
| Plastic, rubber— continued |
Rubber; natural; expanded | High-hazard (Group A expanded) |
| Plastic, rubber— continued |
Rubber; natural; Nonexpanded | High-hazard (Group A unexpanded) |
| Plastic, rubber— continued |
Rubber; synthetic (santoprene) | High-hazard (Group A unexpanded) |
| Plastic, rubber— continued |
Rubber tires | High-hazard |
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TABLE 3203.8—EXAMPLES OF COMMODITY CLASSIFICATION—continued
| PRODUCT CATEGORY |
PRODUCT | CLASSIFICATION |
|---|---|---|
| Plastic, rubber— continued |
SAN (styrene acrylonitrile) | High-hazard (Group A unexpanded) |
| Plastic, rubber— continued |
SBR (styrene-butadiene rubber) | High-hazard (Group A unexpanded) |
| Plastic, rubber— continued |
Silicone rubber | Class IV (Group B plastic) |
| Plastic, rubber— continued |
Urea (urea formaldehyde) | Class III (Group C plastic) |
| Plastic containers | Bottles or jars greater than 1 gallon containing noncombustible solids | High-hazard (Group A unexpanded) |
| Plastic containers | Bottles or jars up to 1 gallon containing noncombustible solids | High-hazard (Group A unexpanded) |
| Powders, pills | Pharmaceutical pills; glass bottles or jars; cartoned | Class II |
| Powders, pills | Pharmaceutical pills; plastic bottles or jars; cartoned | Class IV |
| Powders, pills | Polyvinyl alcohol (PVA) resins; bagged | Class IV |
| Powders, pills | Powders; combustible (ordinary—such as sugar or flour); free-flowing; bagged | Class II |
| Powders, pills | Powders; noncombustible free-flowing powdered or granular materials (such as cement, calcium chloride, clay, iron oxide, sodium chloride, sodium silicate); bagged |
Class I |
| Powders, pills | Powders; noncombustible; glass bottles or jars; cartoned | Class I |
| Powders, pills | Powders; noncombustible; PET bottles or jars | Class II |
| Powders, pills | Powders; noncombustible; plastic (other than PET) bottles or jars; uncartoned | High-hazard (Group A unexpanded) |
| Powders, pills | Powders; noncombustible; plastic bottles or jars greater than 1-gallon capacity | High-hazard (Group A unexpanded) |
| Powders, pills | Powders; noncombustible; plastic bottles or jars up to 1-gallon capacity; cartoned | Class IV |
| Textile materials and products |
Cloth; natural fibers; baled | Class III |
| Textile materials and products |
Cloth; synthetic cloth | Class IV |
| Textile materials and products |
Clothing; natural fibers (such as wool, cotton) and viscose | Class III |
| Textile materials and products |
Cotton; cartoned | Class III |
| Textile materials and products |
Diapers; cotton or linen | Class III |
| Textile materials and products |
Diapers; plastic or nonwoven fabric; cartoned | Class IV |
| Textile materials and products |
Diapers; plastic or nonwoven fabric; plastic-wrapped; uncartoned | High-hazard (Group A unexpanded) |
| Textile materials and products |
Fabric; rayon and nylon | Class IV |
| Textile materials and products |
Fabric; synthetic (except rayon and nylon); greater than 50/50 blend | High-hazard (Group A unexpanded) |
| Textile materials and products |
Fabric; synthetic (except rayon and nylon); up to 50/50 blend | Class III |
| Textile materials and products |
Fabric; vinyl-coated (such as tablecloth); cartoned | High-hazard (Group A unexpanded) |
| Textile materials and products |
Fibers; rayon and nylon; baled | Class IV |
| Textile materials and products |
Fibers; synthetic (except rayon and nylon); baled | High-hazard (Group A unexpanded) |
| Textile materials and products |
Thread or yarn; rayon and nylon; wood or paper spools | Class IV |
| Textile materials and products |
Thread or yarn; rayon or nylon; plastic spools | High-hazard (Group A unexpanded) |
| Textile materials and products |
Thread or yarn; synthetic (except rayon and nylon); greater than 50/50 blend; paper or wood spools |
Class IV |
| Textile materials and products |
Thread or yarn; synthetic (except rayon and nylon); greater than 50/50 blend; plastic spools | High-hazard (Group A unexpanded) |
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TABLE 3203.8—EXAMPLES OF COMMODITY CLASSIFICATION—continued
| PRODUCT CATEGORY |
PRODUCT | CLASSIFICATION |
|---|---|---|
| Textile materials and products—continued |
Thread or yarn; synthetic (except rayon and nylon); up to 50/50 blend; plastic spools | High-hazard (Group A unexpanded) |
| Textile materials and products—continued |
Thread or yarn; synthetic (except rayon and nylon); up to 50/50 blend; wood or paper spools | Class III |
| Wax products | Candles | High-hazard (Group A expanded) |
| Wax products | Paraffin or petroleum wax; blocks | High-hazard (Group A expanded) |
| Wire, cable, spools | Spools; plastic; empty | High-hazard (Group A unexpanded) |
| Wire, cable, spools | Spools; wood; empty | Class III |
| Wire, cable, spools | Wire or cable; PVC insulated; metal or wood spools | Class II |
| Wire, cable, spools | Wire or cable; PVC insulated; plastic spools | Class IV |
| Wire, cable, spools | Wire; bare; metal spools; uncartoned | Class I |
| Wire, cable, spools | Wire; bare; metal spools; cartoned | Class II |
| Wire, cable, spools | Wire; bare; plastic spools; cartoned | Class IV |
| Wire, cable, spools | Wire; bare; plastic spools; uncartoned | High-hazard (Group A unexpanded) |
| Wire, cable, spools | Wire; bare; wood or cardboard spools | Class II |
| Wood products | Wood patterns | Class IV |
| Wood products | Wood products (such as fiberboard, lumber, particle board, plywood, pressboard with smooth ends and edges); bundled solid blocks |
Class II |
| Wood products | Wood products (such as fiberboard, lumber, particle board, plywood, pressboard with smooth ends and edges); unbundled or nonsolid blocks |
Class III |
| Wood products | Wood products (such as toothpicks, clothespins and hangers) | Class III |
| For SI: 1 inch = 25.4 mm, 1 gallon = 3.8 L, 1 ounce = 29.57 ml. |
3203.9 Limited quantities of Group A plastics in mixed commodities. ¶
Figures 3203.9(1) and 3203.9(2) shall be used to determine the commodity classification based on the quantity of Group A plastics in the following situations:
- The product is not listed in Table 3203.8 and contains Group A plastics.
- The commodity contains Group A plastics and is not classified as high hazard in Table 3203.8.
- The product listing in Table 3203.8 does not specifically include packaging, and the packaging material includes Group A plastics.
on Jul 18, 2025 11:14 AM (CDT) THEREUNDER.
HIGH-PILED COMBUSTIBLE STORAGE
FIGURE 3203.9(1)—EVALUATION OF CARTONED COMMODITIES CONTAINING GROUP A PLASTICS [a, b]
| D | |||||||
|---|---|---|---|---|---|---|---|
| C | |||||||
| B |
0 5 10 15 20 25 30 35 40 45
Percent by Volume of Group A Expanded Plastic ( V PE )
A = Class I, II or III commodity B = Class IV commodity C = High-hazard commodity (Group A Unexpanded) D = High-hazard commodity (Group A Expanded)
a. This figure is used to determine the commodity classification of a mixed commodity with Group A plastics in a package, carton or crate. b. The following is an example of how to apply Figure 3203.9(1): A pallet load consists of a Class III commodity in cardboard boxes with components of unexpanded Group A plastic and packing material of expanded Group A plastic. Using Equation 32-1, the weight of unexpanded Group A plastic is 5 percent. Using Equation 32-2, the volume of expanded Group A plastic is 15 percent. This commodity is classified as a Class IV commodity. If the volume of the expanded Group A plastic is increased to 20 percent, the classification changes to a high-hazard (Group A unexpanded) commodity. Where the load is stored on a plastic pallet, the requirements in Section 3203.10 also apply.
| N OF EXPOSED COMMODITIE | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| D | |||||||||
| C | |||||||||
0 5 10 15 20 25 30 35 40 45
Percent by Volume of Group A Expanded Plastic ( P VE )
A = Class I, II or III commodity B = Class IV commodity
C = High-hazard commodity (Group A Unexpanded)
D = High-hazard commodity (Group A Expanded)
a. This figure is used to determine the commodity classification of a mixed commodity with Group A plastics where the products are exposed. b. The following is an example of how to apply Figure 3203.9(2): A pallet load consists of an exposed Class III commodity with components of unexpanded Group A plastic and packing material of expanded Group A plastic. Using Equation 32-1, the weight of unexpanded Group A plastic is 5 percent. Using Equation 32-2, the volume of expanded Group A plastic is 6 percent. This commodity is classified as a high-hazard (Group A unexpanded) commodity. Where the load is stored on a plastic pallet, the requirements in Section 3203.10 also apply.
32-12 2025 CALIFORNIA FIRE CODE
on Jul 18, 2025 11:14 AM (CDT) THEREUNDER.
HIGH-PILED COMBUSTIBLE STORAGE
3203.9.1 Classifying mixed commodities with limited Group A plastics. The percentage of Group A plastics determined in accordance with Section 3203.9.2 shall be used in Figures 3203.9(1) and 3203.9(2). Results from Figure 3203.9(1) must be compared to results from Figure 3203.9(2) and the commodity will be classified with the highest commodity classification. Figures 3203.9(1) and 3203.9(2) shall not be used to reduce the commodity classification shown in Table 3203.8. 3203.9.2 Percentage of Group A plastics. The pallet, if any, shall not be included when measuring the weight of the commodity ( W PU or W PE ) or the volume of the commodity ( V PE ). The pallet, if any, shall be included when measuring the weight of the entire load ( W L ) or the volume of the entire load ( V L ). Exception: Where noncombustible pallets are used, the pallets shall not be included in the volume and weight calculations. The percentage by weight of Group A unexpanded plastics in the load shall be calculated in accordance with Equation 32-1. The percentage by volume of Group A expanded plastics in the load shall be calculated in accordance with Equation 32-2. The percentage by weight of Group A expanded plastics in the load shall be calculated in accordance with Equation 32-3. Equation-32-1 P WU = W PU / W L
where:
P WU = Percentage by weight of Group A unexpanded plastic. W PU = Weight of Group A unexpanded plastic in the commodity, not including the weight of the pallet, if any. W L = Weight of the entire load, including the weight of the pallet, if any. Equation 32-2 P VE = V PE / V L
where:
P VE = Percentage by volume of Group A expanded plastic. V PE = Volume of Group A expanded plastic in the commodity, not including the volume of the pallet, if any. V L = Volume of the entire load, including the volume of the pallet, if any. Equation 32-3 P WE = W P Ε/ W L
where:
P WE = Percentage by weight of Group A expanded plastic. W PE = Weight of Group A expanded plastic in the commodity, not including the weight of the pallet, if any. W L = Weight of the entire load, including the weight of the pallet, if any.
3203.10 Plastic pallets. ¶
The commodity classification determined in Section 3203.8 or 3203.9 shall be modified in accordance with Sections 3203.10.1 through 3203.10.3 where plastic pallets are used. Exception: The commodity classification is not modified where any of the following conditions occur:
- Group A plastic commodities are stored on plastic pallets.
- Sprinkler protection consists of sprinklers at the ceiling only, using sprinklers with a minimum K-factor of K-16.8 (240).
- The plastic pallets are listed and labeled in accordance with Section 3206.4.1.1. 3203.10.1 Unreinforced plastic pallets. For Class I through IV commodities, where unreinforced polypropylene or unreinforced high-density polyethylene plastic pallets are used, the commodity classification shall be increased one class. To be considered unreinforced plastic pallets, the pallets shall be marked with a permanent symbol indicating the pallet is unreinforced. 3203.10.2 Reinforced plastic pallets. For Class I through IV commodities, where reinforced polypropylene or reinforced highdensity polyethylene plastic pallets are used, the commodity classification shall be increased two classes except for Class IV commodities, which shall be increased to a high-hazard (Group A plastic, cartoned, unexpanded) commodity. 3203.10.3 Other pallets. For Class I through IV commodities stored on plastic pallets other than polypropylene or high-density polyethylene plastic pallets, the commodity classification shall be increased two classes unless specific testing is conducted by a testing laboratory.
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Ask AI about this code▸ Contents — 2025 California Fire Code (Title 24, Part 9)
- Chapter 1 — ADMINISTRATION
- Chapter 2 — DEFINITIONS
- Chapter 3 — GENERAL REQUIREMENTS
- Chapter 4 — EMERGENCY PLANNING AND PREPAREDNESS
- Chapter 5 — FIRE SERVICE FEATURES
- Chapter 6 — BUILDING SERVICES AND SYSTEMS
- Chapter 7 — FIRE AND SMOKE PROTECTION FEATURES
- Chapter 8 — INTERIOR FINISH, DECORATIVE MATERIALS AND FURNISHI…
- Chapter 9 — FIRE PROTECTION AND LIFE SAFETY SYSTEMS
- Chapter 10 — MEANS OF EGRESS
- Chapter 11 — CONSTRUCTION REQUIREMENTS FOR EXISTING BUILDINGS
- Chapter 12 — ENERGY SYSTEMS
- Chapter 20 — AVIATION FACILITIES
- Chapter 21 — DRY CLEANING
- Chapter 22 — COMBUSTIBLE DUST-PRODUCING OPERATIONS
- Chapter 23 — MOTOR FUEL-DISPENSING FACILITIES AND REPAIR GARAGES
- Chapter 24 — FLAMMABLE FINISHES
- Chapter 25 — FRUIT AND CROP RIPENING
- Chapter 26 — FUMIGATION AND INSECTICIDAL FOGGING
- Chapter 27 — SEMICONDUCTOR FABRICATION FACILITIES
- Chapter 28 — LUMBER YARDS AND AGRO-INDUSTRIAL, SOLID BIOMASS A…
- Chapter 29 — MANUFACTURE OF ORGANIC COATINGS
- Chapter 30 — INDUSTRIAL OVENS
- Chapter 31 — TENTS, TEMPORARY SPECIAL EVENT STRUCTURES AND OTH…
-
▸ Chapter 32 — HIGH-PILED COMBUSTIBLE STORAGE
Overview- Section 3201 — GENERAL
- Section 3202 — DEFINITIONS
- Section 3203 — COMMODITY CLASSIFICATION
- Section 3204 — DESIGNATION OF HIGH-PILED STORAGE AREAS
- Section 3205 — HOUSEKEEPING AND MAINTENANCE
- Section 3206 — GENERAL FIRE PROTECTION AND LIFE SAFETY FEATURES
- Section 3207 — SOLID-PILED AND SHELF STORAGE
- Section 3208 — RACK STORAGE
- Section 3209 — AUTOMATED STORAGE
- Section 3210 — SPECIALTY STORAGE
- Chapter 33 — FIRE SAFETY DURING CONSTRUCTION AND DEMOLITION
- Chapter 34 — TIRE REBUILDING AND TIRE STORAGE
- Chapter 35 — WELDING AND OTHER HOT WORK
- Chapter 36 — MARINAS
- Chapter 37 — COMBUSTIBLE FIBERS
- Chapter 38 — RESERVED
- Chapter 39 — PROCESSING AND EXTRACTION FACILITIES
- Chapter 40 — STORAGE OF DISTILLED SPIRITS AND WINES
- Chapter 41 — TEMPORARY HEATING AND COOKING OPERATIONS
- Chapter 48 — MOTION PICTURE AND TELEVISION PRODUCTION STUDIO S…
- Chapter 49 — REQUIREMENTS FOR WILDLAND-URBAN INTERFACE FIRE AR…
- Chapter 50 — HAZARDOUS MATERIALS—GENERAL PROVISIONS
- Chapter 51 — AEROSOLS
- Chapter 52 — RESERVED
- Chapter 53 — COMPRESSED GASES
- Chapter 54 — CORROSIVE MATERIALS
- Chapter 55 — CRYOGENIC FLUIDS
- Chapter 56 — EXPLOSIVES AND FIREWORKS
- Chapter 57 — FLAMMABLE AND COMBUSTIBLE LIQUIDS
- Chapter 58 — FLAMMABLE GASES AND FLAMMABLE CRYOGENIC FLUIDS
- Chapter 59 — FLAMMABLE SOLIDS
- Chapter 60 — HIGHLY TOXIC AND TOXIC MATERIALS
- Chapter 61 — LIQUEFIED PETROLEUM GASES
- Chapter 62 — ORGANIC PEROXIDES
- Chapter 63 — OXIDIZERS, OXIDIZING GASES AND OXIDIZING CRYOGENI…
- Chapter 64 — PYROPHORIC MATERIALS
- Chapter 65 — PYROXYLIN (CELLULOSE NITRATE) PLASTICS
- Chapter 66 — UNSTABLE (REACTIVE) MATERIALS
- Chapter 67 — WATER-REACTIVE SOLIDS AND LIQUIDS
- Chapter 80 — REFERENCED STANDARDS
- Appendix Chapter 4 — SPECIAL DETAILED REQUIREMENTS BASED ON US…
- Appendix A — BOARD OF APPEALS
- Appendix B — FIRE-FLOW REQUIREMENTS FOR BUILDINGS
- Appendix BB — FIRE-FLOW REQUIREMENTS FOR BUILDINGS
- Appendix C — FIRE HYDRANT LOCATIONS AND DISTRIBUTION
- Appendix CC — FIRE HYDRANT LOCATIONS AND DISTRIBUTION
- Appendix D — FIRE APPARATUS ACCESS ROADS
- Appendix E — HAZARD CATEGORIES
- Appendix F — HAZARD RANKING
- Appendix G — CRYOGENIC FLUIDS—WEIGHT AND VOLUME EQUIVALENTS
- Appendix H — HAZARDOUS MATERIALS MANAGEMENT PLANS AND HAZARDOU…
- Appendix I — FIRE PROTECTION SYSTEMS—NONCOMPLIANT CONDITIONS
- Appendix J — BUILDING INFORMATION SIGN
- Appendix K — CONSTRUCTION REQUIREMENTS FOR EXISTING AMBULATORY…
- Appendix L — REQUIREMENTS FOR FIREFIGHTER AIR REPLENISHMENT SY…
- Appendix M — HIGH-RISE BUILDINGS—RETROACTIVE AUTOMATIC SPRINKL…
- Appendix N — INDOOR TRADE SHOWS AND EXHIBITIONS
- Appendix O — VALET TRASH AND RECYCLING COLLECTION IN GROUP R-2…
- Appendix P — TEMPORARY HAUNTED HOUSES, GHOST WALKS AND SIMILAR…
- Appendix Q — COMMUNITY WILDLAND-URBAN INTERFACE (WUI) FIRE HAZ…