UN 1361 charcoal briquettes require a product-based maritime safety review before a sailing can be treated as workable. IMDG Code Amendment 42-24 became mandatory on 1 January 2026. Its dangerous goods list places carbon of animal or vegetable origin, including charcoal produced from coconut shell or wood, under UN 1361, Class 4.2, with Special Provision 978. Turning charcoal into a briquette or placing it in retail cartons does not by itself make the shipment non-dangerous.
This guide explains the practical decisions behind the code: classification evidence, production records, conditioning, packaging, transport documents and vessel acceptance. It is for exporters and buyers preparing a real shipment brief. The manufacturer and authorized cargo parties remain responsible for accurate product information and declarations. Chindo Cargo can coordinate the freight review within an agreed scope; it cannot certify a product or promise that a line will carry it.
Identify the material before selecting a declaration
The IMO amendment resolution MSC.556(108) lists “CARBON, animal or vegetable origin” as UN 1361, Class 4.2, with entries for packing groups II and III. Its examples include material made from bone, bamboo, coconut shell, jute and wood. Activated carbon appears under a separate entry, UN 1362. A sales label saying “coconut briquette” is therefore insufficient to settle the technical transport description.
Ask the producer to identify the feedstock, pyrolysis process, additives or binder, batch, manufacturing dates and final form. Match those details to the safety data sheet and any test evidence. The responsible classifier should explain the chosen packing group from the actual material, not infer it from carton size, intended barbecue use or a prior booking. If a sample and the shipment lot differ, address the difference openly before sending documents to the carrier.
Retire old exemption assumptions
The IMO states that Amendment 42-24 took effect on 1 January 2026. Its adopted text for SP 978 closes a former exemption route and adds specific conditioning, packaging and traceability duties. These are code provisions; a carrier may still apply further operational controls to a particular vessel or route.
SP 978 specifically prevents use of the UN N.4 test to exempt animal or vegetable carbon from the IMDG Code. Without testing, the material is assigned at least packing group III. This is not a shortcut for skipping product review: obtain the applicable classification and check the current code with the carrier for the actual shipment. A statement that last year's cartons moved as ordinary cargo is not a defensible basis for a 2026 booking.
Trace the conditioning route and temperature
Unless a competent authority approves otherwise, SP 978 gives two conditioning routes. Unpacked material can be weathered for at least 14 days after production under cover but in the open air. Alternatively, after pyrolysis it can be steamed and cooled, packed under an inert gas atmosphere, then kept under loose cover or in the open air for at least 24 hours before transport. A producer needs dated records showing which route was actually followed for the lot offered.
The material must be at or below 40°C on the day it is packed. Record the measurement and link it to the packing date, lot and responsible person. Do not replace a missing measurement with an estimate based on how cool a carton feels later. Production and packing may occur on different days, and combining several lots in one shipment makes batch identification especially important. Buyers should request the evidence early enough for a meaningful review, before a vessel cut-off forces rushed declarations.
Design the package and container stowage together
Describe inner and outer packages, individual weights, palletization, closure and intended marks. The applicable packing instruction depends on the final classification, so the supplier should not order all packaging from a generic retail specification alone. Any change in cartons, pallets or gross weight should be sent back through the technical and carrier review before loading.
SP 978 requires at least 30 cm of headspace in the cargo transport unit. It also sets out a stowage arrangement in which package stack height should not exceed 1.5 m, or package blocks should be no more than 16 m³ with at least 15 cm between blocks. A diagram for the actual container is more useful than a declaration that the goods “fit.” The packer must also consider load security and the container's condition. Filling the remaining space simply because the volume is available can defeat the intended arrangement.
Put production facts into the transport document
Section 5.4.1.5.18 of the IMO resolution requires three additional UN 1361 entries in the dangerous goods transport document: production date, date of packing into packages, and temperature of the material on the packing day in °C. They should come from the producer's records rather than an invoice date. The consignor's declaration and the container or vehicle packing certificate have their own responsible signatories; a commercial invoice alone does not make either certification.
Our Indonesian charcoal export document checklist covers how invoice, packing list, SDS, customs export declaration and dangerous goods papers need to agree. The qualified exporter or cargo owner remains responsible for the Indonesian export filing, even when a forwarder coordinates freight. If a lot, weight or package count changes, issue corrected documents and ask whether the carrier needs to repeat its review.
Seek acceptance for the whole route
Send the carrier a product description, appropriate SDS, batch evidence, packaging plan, proposed origin, destination and transit points. Ask which legs and terminals accept UN 1361, which document deadline applies and whether a vessel change requires fresh approval. A line can impose operational requirements beyond the code minimum; the relevant answer is the written response for this booking, not a generalized statement from another route.
Keep a simple decision trail: submitted, questions outstanding, accepted or declined. Neither a quote nor a draft booking proves the cargo is accepted. The Java-to-Fiji charcoal guide discusses a separate future planning baseline from US$15,000, subject to product details and carrier acceptance; it does not describe a completed Fiji case. Use the accepted technical scope to request a written freight quotation, with origin, destination and any special handling separately defined.