1.1
1.3
1.4
2.1
2.2
2.3
3
4.1
4.2
4.3
5.1
5.2
6.1
6.2
7
8
9
Class
1.2
1.6
1.5
(*)
(*)
(*)
4
2
2
4
4
4
4
4
4
2
4
2
4
X
Explosives, 1.1, 1.2, 1.5
(*)
(*)
(*)
4
2
2
4
3
3
4
4
4
2
4
2
2
X
Explosives, 1.3
(*)
(*)
(*)
2
1
1
2
2
2
2
2
2
X
4
2
2
X
Explosives, 1.4, 1.6
4
4
2
X
X
X
2
1
2
X
2
2
X
4
2
1
X
Flammable Gases, 2.1
2
2
1
X
X
X
1
X
1
X
X
1
X
2
1
X
X
Non-Toxic, non-flammable gases,
2.2
2
2
1
X
X
X
2
X
2
X
X
2
X
2
1
X
X
Poisonous gases 2.3
4
4
2
2
1
2
X
X
2
1
2
2
X
3
2
X
X
Flammable Liquids 3
4
3
2
1
X
X
X
X
1
X
1
2
X
3
2
1
X
Flammable Solids 4.1
4
3
2
2
1
2
2
1
X
1
2
2
1
3
2
1
X
Spontaneously combustible
substances 4.2
4
4
2
X
X
X
1
X
1
X
2
2
X
2
2
1
X
Substances which are dangerous
when wet 4.3
4
4
2
2
X
X
2
1
2
2
X
2
1
3
1
2
X
Oxidizing substances 5.1
4
4
2
2
1
2
2
2
2
2
2
X
1
3
2
2
X
Organic peroxides 5.2
2
2
X
X
X
X
X
X
1
X
1
1
X
1
X
X
X
Poisons 6.1
4
4
4
4
2
2
3
3
3
2
3
3
1
X
3
3
X
Infectious substances 6.2
2
2
2
2
1
1
2
2
2
2
1
2
X
3
X
2
X
Radioactive materials 7
4
2
2
1
X
X
X
1
1
1
2
2
X
3
2
X
X
Corrosives 8
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
Miscellaneous dangerous
substances 9
Numbers and symbols relate to the following terms as defined in this section:
1 - "Away from."
2 - "Separated from."
3 - "Separated by a complete compartment or hold from."
4 - "Separated longitudinally by an intervening complete compartment or hold from."
X - The segregation, if any, is shown in the section 172.101 Table.
* - See section 176.144 of Title 49 for segregation within Class 1.
Figure 6-4. General Segregation Requirements for Hazardous Materials for Carriage by Vessel
