Shipping Coconut Charcoal: UN 1361 / Class 4.2 Dangerous Goods

Coconut-shell BBQ charcoal ships as UN 1361, Class 4.2 (self-heating substance), and since the 2025 edition of the IMDG Code it must move as declared dangerous goods. Handling this correctly is a test of your supplier’s logistics competence, not a problem to hide — a mis-declared booking is what gets a container refused or held.

How It’s Classified

Dangerous-goods classification for coconut-shell charcoal Method / source: IMDG Code, Amendment 42-24 (in force 2025); UN Dangerous Goods List

Field	Value
UN number	1361
Proper shipping name	Carbon, animal or vegetable origin
Hazard class / division	4.2 (self-heating substance)
Packing group	III
Special provision	SP 978

What Changed In 2025 (IMDG Amendment 42-24)

For years, Special Provision 925 let a consignment that passed the UN N.4 self-heating test ship outside Class 4.2. Under IMDG Amendment 42-24 (in force 2025), SP 925 was withdrawn: passing the N.4 test no longer exempts the cargo. Coconut-shell charcoal now ships as Class 4.2, and Special Provision 978 sets the conditions:

• the charcoal is either weathered for at least 14 days after carbonisation or treated by steam / inert-gas process,
• it is packed at a temperature of ≤ 40 °C, and
• it is consigned as Class 4.2, Packing Group III with full dangerous-goods documentation.

This is why a credible supplier weathers and temperature-checks stock before packing — it is a condition of the rule, not an optional nicety.

What A Compliant Booking Needs

Every dangerous-goods shipment we book carries:

1. a UN N.4 self-heating test certificate from an accredited lab,
2. a Safety Data Sheet (SDS / GHS) declaring UN 1361, Class 4.2,
3. a signed dangerous-goods declaration,
4. correct marking and placarding of the unit, and
5. a booking with a carrier that accepts Class 4.2 on the route.

These documents live in the certificate library. Declaring the cargo correctly adds a small amount of transit time — see lead times.

Questions

Is coconut BBQ charcoal dangerous goods for sea freight?

Yes. It ships as UN 1361, Class 4.2 (self-heating substance). Since the 2025 IMDG Code it must move as declared dangerous goods; the older Special Provision 925 self-heating-test exemption was withdrawn.

Does passing the UN N.4 self-heating test exempt the cargo?

No longer. Under IMDG Amendment 42-24, Special Provision 925 was withdrawn, so the N.4 test no longer exempts the charcoal from Class 4.2. Special Provision 978 now governs how it is prepared, packed, and declared.

What documents are required to ship it as dangerous goods?

A UN N.4 self-heating test certificate, an SDS declaring UN 1361 / Class 4.2, a dangerous-goods declaration, correct marking and placarding, and a booking with a carrier that accepts Class 4.2.