LOADINGMCP · IMDG segregation table ↗ · Guide ↗

Class 1.3 — Explosives (div 1.3): IMDG segregation

Class 1.3 (explosives (div 1.3)) must be kept segregated from most other dangerous goods. It cannot share a container with 13 of the other classes — including Class 2.1, Class 2.2, Class 2.3, Class 3 and more. The table below gives the exact code against every class.

1 away from2 separated from3 separated by a complete compartment/hold4 separated longitudinally by an intervening compartment/hold— no general requirement (consult DGL)
Other classCodeWhat it means for a single container
Class 1.1 — Explosives (div 1.1–1.2)—No general segregation requirement between these classes — check the per-substance Dangerous Goods List entry.
Class 1.4 — Explosives (div 1.4)—No general segregation requirement between these classes — check the per-substance Dangerous Goods List entry.
Class 2.1 — Flammable gases4Must NOT be packed in the same container — they must be “separated longitudinally by an intervening complete compartment or hold from”.
Class 2.2 — Non-flammable, non-toxic gases2Must NOT be packed in the same container — they must be “separated from”.
Class 2.3 — Toxic gases2Must NOT be packed in the same container — they must be “separated from”.
Class 3 — Flammable liquids4Must NOT be packed in the same container — they must be “separated longitudinally by an intervening complete compartment or hold from”.
Class 4.1 — Flammable solids3Must NOT be packed in the same container — they must be “separated by a complete compartment or hold from”.
Class 4.2 — Spontaneously combustible3Must NOT be packed in the same container — they must be “separated by a complete compartment or hold from”.
Class 4.3 — Dangerous when wet4Must NOT be packed in the same container — they must be “separated longitudinally by an intervening complete compartment or hold from”.
Class 5.1 — Oxidizing substances4Must NOT be packed in the same container — they must be “separated longitudinally by an intervening complete compartment or hold from”.
Class 5.2 — Organic peroxides4Must NOT be packed in the same container — they must be “separated longitudinally by an intervening complete compartment or hold from”.
Class 6.1 — Toxic substances2Must NOT be packed in the same container — they must be “separated from”.
Class 6.2 — Infectious substances4Must NOT be packed in the same container — they must be “separated longitudinally by an intervening complete compartment or hold from”.
Class 7 — Radioactive material2Must NOT be packed in the same container — they must be “separated from”.
Class 8 — Corrosives2Must NOT be packed in the same container — they must be “separated from”.
Class 9 — Miscellaneous dangerous goods—No general segregation requirement between these classes — check the per-substance Dangerous Goods List entry.

Based on the IMDG Code 7.2.4 general segregation table (main classes only). Individual substances can carry stricter or looser rules in their Dangerous Goods List entry (column 16b) — always verify the specific UN numbers before stowing a real load.

Class 1.3 segregation — FAQ

Can Class 1.3 and Class 1.1 be shipped together?

No general segregation requirement between these classes — check the per-substance Dangerous Goods List entry.

Can Class 1.3 and Class 1.4 be shipped together?

No general segregation requirement between these classes — check the per-substance Dangerous Goods List entry.

Can Class 1.3 and Class 2.1 be shipped together?

Must NOT be packed in the same container — they must be “separated longitudinally by an intervening complete compartment or hold from”.

IMDG Code 7.2.4 general table. Updated 2026-07-14.