Table D-4. Class or Division Cross-Reference to Storage Areas
This Table outlines a method recommended for determining where to store hazardous materials not assigned an
HCC based on the class or division numbers found in Title 49 CFR, Part 172.101. The number is displayed at
the bottom of the placard or label, or on a shipping paper after the shipping name.
Class/
HCC
Name
Primary Storage
Secondary Storage Area
Division
Area
1.1
E1
Explosive
Magazine
1.2
E1
Explosive
Magazine
1.3
E1
Explosive
Magazine
1.4
E1
Magazine
1.4S
E2
Low Hazard
Security
1.5
E1
Explosive
Magazine
1.6
E1
Explosive
Magazine
2.1
G2
Flammable Gases
Gas, Compressed
Flammable Gas
2.2
G3,G4,
Nonflammable Gases
Gas, Compressed
Nonflammable Gas
G5
2.3
G1,G6,
Poison Gases
Gas, Compressed
Poison Gas
G7,G8,
G9
3
F1
Flammable Liquids, PG I
Flammable
Flammable Liquid
3
F2
Flammable Liquids PG II
Flammable
Flammable Liquid
3
F3,F4
Flammable Liquids PG III
Flammable
Flammable Liquid
4.1
F8
Flammable Solids
Flammable
Flammable Solid
4.2
R1
Spontaneously Combustible
Reactive
Spontaneously
Combustible
4.3
R2
Dangerous When Wet
Reactive
Non Water Based Fire
Protection
5.1
D1
Oxidizers
Oxidizer
None
5.2
P1
Organic Peroxides
Peroxide, Organic None
6.1
T1,T2,
Poisonous Materials
Poison
None
T3
6.1
T4
Poisonous Materials
Poison
Away from Food
6.2
K1
Infectious Substance
Poison
Biomedical
7
A1,A2,
Radioactives
Radioactive
Security
A3
8
C1,C2,
Corrosives
Corrosive
Acid
C4,C5
8
B1,B2
Corrosives
Corrosive
Alkali
9
V1
Miscellaneous Hazardous Material
Low Hazard *
None
* Material bearing warning label will not be assigned to a general purpose location without notification of approval by the installation Safety
and Health Office.
D-4
