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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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HIGH-PILED COMBUSTIBLE STORAGE

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:

  1. The product is not listed in Table 3203.8 and contains Group A plastics.
  2. The commodity contains Group A plastics and is not classified as high hazard in Table 3203.8.
  3. The product listing in Table 3203.8 does not specifically include packaging, and the packaging material includes Group A plastics.

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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:

  1. Group A plastic commodities are stored on plastic pallets.
  2. Sprinkler protection consists of sprinklers at the ceiling only, using sprinklers with a minimum K-factor of K-16.8 (240).
  3. 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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Contents — 2025 California Fire Code (Title 24, Part 9)
2025 California Fire Code (Title 24, Part 9)
  1. Chapter 1 — ADMINISTRATION
  2. Chapter 2 — DEFINITIONS
  3. Chapter 3 — GENERAL REQUIREMENTS
  4. Chapter 4 — EMERGENCY PLANNING AND PREPAREDNESS
  5. Chapter 5 — FIRE SERVICE FEATURES
  6. Chapter 6 — BUILDING SERVICES AND SYSTEMS
  7. Chapter 7 — FIRE AND SMOKE PROTECTION FEATURES
  8. Chapter 8 — INTERIOR FINISH, DECORATIVE MATERIALS AND FURNISHI…
  9. Chapter 9 — FIRE PROTECTION AND LIFE SAFETY SYSTEMS
  10. Chapter 10 — MEANS OF EGRESS
  11. Chapter 11 — CONSTRUCTION REQUIREMENTS FOR EXISTING BUILDINGS
  12. Chapter 12 — ENERGY SYSTEMS
  13. Chapter 20 — AVIATION FACILITIES
  14. Chapter 21 — DRY CLEANING
  15. Chapter 22 — COMBUSTIBLE DUST-PRODUCING OPERATIONS
  16. Chapter 23 — MOTOR FUEL-DISPENSING FACILITIES AND REPAIR GARAGES
  17. Chapter 24 — FLAMMABLE FINISHES
  18. Chapter 25 — FRUIT AND CROP RIPENING
  19. Chapter 26 — FUMIGATION AND INSECTICIDAL FOGGING
  20. Chapter 27 — SEMICONDUCTOR FABRICATION FACILITIES
  21. Chapter 28 — LUMBER YARDS AND AGRO-INDUSTRIAL, SOLID BIOMASS A…
  22. Chapter 29 — MANUFACTURE OF ORGANIC COATINGS
  23. Chapter 30 — INDUSTRIAL OVENS
  24. Chapter 31 — TENTS, TEMPORARY SPECIAL EVENT STRUCTURES AND OTH…
  25. Chapter 32 — HIGH-PILED COMBUSTIBLE STORAGE
  26. Chapter 33 — FIRE SAFETY DURING CONSTRUCTION AND DEMOLITION
  27. Chapter 34 — TIRE REBUILDING AND TIRE STORAGE
  28. Chapter 35 — WELDING AND OTHER HOT WORK
  29. Chapter 36 — MARINAS
  30. Chapter 37 — COMBUSTIBLE FIBERS
  31. Chapter 38 — RESERVED
  32. Chapter 39 — PROCESSING AND EXTRACTION FACILITIES
  33. Chapter 40 — STORAGE OF DISTILLED SPIRITS AND WINES
  34. Chapter 41 — TEMPORARY HEATING AND COOKING OPERATIONS
  35. Chapter 48 — MOTION PICTURE AND TELEVISION PRODUCTION STUDIO S…
  36. Chapter 49 — REQUIREMENTS FOR WILDLAND-URBAN INTERFACE FIRE AR…
  37. Chapter 50 — HAZARDOUS MATERIALS—GENERAL PROVISIONS
  38. Chapter 51 — AEROSOLS
  39. Chapter 52 — RESERVED
  40. Chapter 53 — COMPRESSED GASES
  41. Chapter 54 — CORROSIVE MATERIALS
  42. Chapter 55 — CRYOGENIC FLUIDS
  43. Chapter 56 — EXPLOSIVES AND FIREWORKS
  44. Chapter 57 — FLAMMABLE AND COMBUSTIBLE LIQUIDS
  45. Chapter 58 — FLAMMABLE GASES AND FLAMMABLE CRYOGENIC FLUIDS
  46. Chapter 59 — FLAMMABLE SOLIDS
  47. Chapter 60 — HIGHLY TOXIC AND TOXIC MATERIALS
  48. Chapter 61 — LIQUEFIED PETROLEUM GASES
  49. Chapter 62 — ORGANIC PEROXIDES
  50. Chapter 63 — OXIDIZERS, OXIDIZING GASES AND OXIDIZING CRYOGENI…
  51. Chapter 64 — PYROPHORIC MATERIALS
  52. Chapter 65 — PYROXYLIN (CELLULOSE NITRATE) PLASTICS
  53. Chapter 66 — UNSTABLE (REACTIVE) MATERIALS
  54. Chapter 67 — WATER-REACTIVE SOLIDS AND LIQUIDS
  55. Chapter 80 — REFERENCED STANDARDS
  56. Appendix Chapter 4 — SPECIAL DETAILED REQUIREMENTS BASED ON US…
  57. Appendix A — BOARD OF APPEALS
  58. Appendix B — FIRE-FLOW REQUIREMENTS FOR BUILDINGS
  59. Appendix BB — FIRE-FLOW REQUIREMENTS FOR BUILDINGS
  60. Appendix C — FIRE HYDRANT LOCATIONS AND DISTRIBUTION
  61. Appendix CC — FIRE HYDRANT LOCATIONS AND DISTRIBUTION
  62. Appendix D — FIRE APPARATUS ACCESS ROADS
  63. Appendix E — HAZARD CATEGORIES
  64. Appendix F — HAZARD RANKING
  65. Appendix G — CRYOGENIC FLUIDS—WEIGHT AND VOLUME EQUIVALENTS
  66. Appendix H — HAZARDOUS MATERIALS MANAGEMENT PLANS AND HAZARDOU…
  67. Appendix I — FIRE PROTECTION SYSTEMS—NONCOMPLIANT CONDITIONS
  68. Appendix J — BUILDING INFORMATION SIGN
  69. Appendix K — CONSTRUCTION REQUIREMENTS FOR EXISTING AMBULATORY…
  70. Appendix L — REQUIREMENTS FOR FIREFIGHTER AIR REPLENISHMENT SY…
  71. Appendix M — HIGH-RISE BUILDINGS—RETROACTIVE AUTOMATIC SPRINKL…
  72. Appendix N — INDOOR TRADE SHOWS AND EXHIBITIONS
  73. Appendix O — VALET TRASH AND RECYCLING COLLECTION IN GROUP R-2…
  74. Appendix P — TEMPORARY HAUNTED HOUSES, GHOST WALKS AND SIMILAR…
  75. Appendix Q — COMMUNITY WILDLAND-URBAN INTERFACE (WUI) FIRE HAZ…

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