# Export Documentation for a CMT Factory: From Challan to Bill of Lading

> The garment export document chain in plain terms: challan and delivery note, commercial invoice, packing list, certificate of origin, bill of lading. Who produces what, where CMT differs from FOB, and what delays shipments.

**Source:** [https://scanerp.pro/blog/garment-export-documentation-cmt-factory.html](https://scanerp.pro/blog/garment-export-documentation-cmt-factory.html)

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# Export Documentation for a CMT Factory: From Challan to Bill of Lading

Santosh Rijal · September 16, 2026 · 9 min read · Dispatch

**TL;DR — Direct Answer:**
The export chain runs roughly: **delivery challan** (goods physically leave the factory) → **commercial invoice** (what is being sold and for how much) → **packing list** (what is in which carton) → **certificate of origin** (where it was made) → **bill of lading or air waybill** (the carrier's receipt and contract). In a pure CMT arrangement the factory is often not the exporter of record, so it produces the challan and the underlying counts while the buyer, buying house or exporter of record produces the commercial documents. **Nothing here is legal advice** — requirements vary by country, destination and trade agreement, and your freight forwarder or customs house agent is the authority on what your specific shipment needs.

Export documentation is one of those subjects where everyone in the factory has a rough idea and nobody has the complete picture. The merchandiser knows the invoice, the store keeper knows the challan, and the person who actually understands the whole chain works for the freight forwarder and is not in the building.

I run a CMT factory in Nepal, and I want to set out the chain as a factory owner understands it, with a clear warning at the top: this is a description of general practice, not a compliance guide. Requirements differ by country of manufacture, destination, buyer, product category and whichever trade agreement applies, and they change. Treat everything below as the map you use to ask your freight forwarder or customs house agent better questions, not as an answer you can rely on.

## The Chain in Plain Terms

Five documents carry most shipments. Others appear depending on the destination and the product, but these are the spine, and they are produced in roughly this order.

### 1. Delivery challan or delivery note

This is the internal and domestic document that says goods physically left the factory: which lot, which article, how many cartons, how many pieces, going where, on whose vehicle, on what date. It is the factory's own record and usually the first document in the chain chronologically.

Two properties matter. It should be numbered in a gapless sequence, because a gap means either a missing document or a missing delivery and you need to be able to tell which. We number ours atomically in the format CH-BSYEAR-NNNN, generated inside a transaction, so two people raising challans at the same moment cannot produce the same number or skip one. And it should be tied to the actual goods rather than to an intention, which means it should be built from what was received into finished goods and picked, not from what the order said should exist.

Our challans carry a printable picking list for the packing team and an A4 dispatch document that travels with the vehicle. That is the boundary of what we produce as a factory, and I will come back to why in the CMT section.

### 2. Commercial invoice

The document that states what is being sold, to whom, in what quantity and at what value. Customs on both sides use it to assess the goods, so the description, the quantity and the value have to be consistent with everything else in the file.

It typically carries the exporter and consignee details, the invoice number and date, the order or purchase order reference, a description of the goods including style and composition, quantity, unit price, total value, the Incoterm and the currency, the payment terms, and the country of origin. Where a letter of credit is involved, the wording is often dictated almost word for word by the credit, and a discrepancy as small as a style number written differently can cause the bank to refuse the documents.

### 3. Packing list

The document that says what is in which carton. Carton numbers, contents by size and colour, pieces per carton, net and gross weights, carton dimensions, and the totals.

Customs and the consignee both use it to verify the shipment without opening every box, which is precisely why the carton numbering discipline from the packing floor matters here. If the physical cartons are numbered 1 to 400 with no gaps and the list says the same, an inspection that opens carton 212 and finds what the list predicts proceeds quickly. If the numbering is inconsistent, the inspection expands.

### 4. Certificate of origin

A document certifying where the goods were manufactured. It matters because duty rates and trade preferences depend on origin, and garments are a category where preferential schemes are common and closely scrutinised.

Certificates are generally issued by an authorised body rather than by the factory — commonly a chamber of commerce or a designated government authority, depending on the country and the scheme. There are usually distinct forms for preferential and non-preferential origin. The rules that decide whether goods qualify for preferential origin are technical, involve concepts like the tariff shift and value addition tests, and are exactly the kind of thing where getting it wrong creates a liability years after the goods have been sold. Ask your customs house agent which certificate applies to your destination and which rule of origin your product must satisfy. Do not infer it from what a similar shipment used last year.

### 5. Bill of lading or air waybill

The carrier's document. For sea freight it is a bill of lading; for air freight, an air waybill. It is issued by the carrier or their agent once the goods are handed over, and it does three jobs at once: it receipts the goods, it evidences the contract of carriage, and in the case of a negotiable bill of lading it can function as a document of title, meaning whoever holds the original can claim the goods.

That third function is why an original bill of lading is treated so carefully, and why the drafts go through several rounds of checking before the carrier issues the final. The details on it — consignee, notify party, description, marks, container and seal numbers, freight terms — have to agree with the invoice and the packing list. A mismatch between the bill of lading and the invoice is one of the most common reasons a letter of credit presentation is refused.

## Where CMT Differs From FOB

This is the section I most wish someone had explained to me clearly at the start, because it changes who owns which document.

Under a **CMT** arrangement, the buyer supplies the fabric and trims and the factory supplies cutting, making and trimming. The factory is selling a service, not goods, and in many CMT structures it is not the exporter of record. The buyer, a buying house, or a separate exporting entity handles the commercial export documents, while the factory produces the delivery challan, the counts and grades behind it, and whatever records the buyer requires for their own compliance file.

Under an **FOB** arrangement, the factory buys the materials and sells finished goods. It is usually the exporter of record, which means the commercial invoice, the packing list, the origin certificate application and the carrier booking all become the factory's responsibility, along with the working capital tied up in the fabric.

What does not change with the arrangement is the underlying count. Whoever issues the invoice, the numbers on it originate from what the factory physically received, graded, packed and dispatched. If those numbers are unreliable, the documents are unreliable, and the error surfaces at the port rather than on the floor.

## Common Mistakes That Delay a Shipment

- **Inconsistent description across documents.** The style is written one way on the invoice and another on the bill of lading. This is the most frequent cause of a letter of credit discrepancy and it is entirely avoidable by copying rather than retyping.
- **Quantity mismatch between packing list and invoice.** Usually because the packing list was drafted before a last-minute short shipment and never revised.
- **Weights that disagree with the carrier's.** Estimated weights on the packing list, actual weights at the terminal. Weigh the cartons.
- **Carton number gaps.** A jump in the sequence forces a physical verification that would otherwise not have happened.
- **Origin certificate applied for too late.** These take time to issue and some destinations require the certificate to be dated consistently with the shipment. Starting the application on the day of loading is a standing invitation to a delay.
- **Marks on the cartons that do not match the documents.** The shipping mark is part of the document set. If the physical carton says one purchase order and the invoice says another, everything stops.
- **Amendments made to one copy only.** A revised quantity agreed by email, corrected on the invoice, not corrected on the packing list.

## What the Factory Should Keep

Independently of who issues the commercial documents, the factory has its own retention interest. Buyer audits, compliance audits and disputes all arrive after the goods are gone, and they ask for evidence about the period when you had the goods.

In practical terms, that means being able to reconstruct: what quantity was cut for the lot, what quantity was received into finished goods and at what grade split, what was dispatched on which challan and on which date, and what happened to the difference between those numbers. If a buyer queries a shortfall eight months later, a system that can produce the CUT, RECEIVED and DISPATCHED balances per lot and article answers in minutes what would otherwise take a week of digging through files.

The reason this is worth building rather than filing is that the numbers have to come from the floor. A retained file of documents proves what you said. A pipeline ledger built from scans proves what happened. The difference between those two becomes very important during an audit, and the mechanics of building one are in the article on [short shipments and dispatch accuracy](/blog/dispatch-accuracy-short-shipment-garment.html).

## A Sensible Sequence for a Factory Tightening This Up

1. Settle in writing, per buyer, who is the exporter of record and who produces each document. Put it in the order confirmation, not in an email thread.
2. Number challans gaplessly and generate them from actual received and picked quantities rather than from the order.
3. Weigh cartons rather than estimating, and record the weights where the person drafting the packing list can find them.
4. Give the merchandiser and the freight forwarder access to the same quantity figures, so the invoice and the packing list come from one source.
5. Ask your customs house agent, once, for a written list of what your typical destination requires, and review it annually rather than assuming it is stable.
6. Keep the underlying production counts, not just the documents, and keep them in a form you can query rather than a stack of files.

The documents at the end of the chain are only as good as the counting at the beginning of it. If your finishing room and dispatch are recorded properly — the sequence is described in the articles on [the finishing room](/blog/garment-finishing-room-workflow.html) and [packing methods](/blog/garment-packing-methods-solid-assorted-ratio.html) — then the paperwork becomes transcription rather than reconstruction, and transcription is the part that rarely goes wrong.

## Frequently Asked Questions

### What documents does a garment factory need for export?

The usual spine is a delivery challan or delivery note recording that goods left the factory, a commercial invoice stating what is sold and at what value, a packing list stating what is in which carton, a certificate of origin stating where the goods were made, and a bill of lading for sea freight or an air waybill for air freight. Additional documents appear depending on the destination, the product and any trade agreement in play. Requirements vary by country and change over time, so confirm your specific list with your freight forwarder or customs house agent rather than relying on a general article.

### What is the difference between a challan and a commercial invoice?

A challan or delivery note is the factory record that goods physically left the premises: lot, article, carton count, piece count, destination, vehicle and date. A commercial invoice is the commercial document stating what is being sold, to whom, in what quantity and at what value, and it is what customs authorities on both sides use to assess the goods. The challan is typically produced by the factory from its own dispatch records; the invoice is produced by whoever is the exporter of record, which in a pure CMT arrangement is often not the factory.

### Does a CMT factory issue its own export documents?

Often not. Under CMT the buyer supplies the fabric and trims and the factory supplies cutting, making and trimming, so the factory is selling a service rather than goods and is frequently not the exporter of record. In that structure the buyer, a buying house or a separate exporting entity produces the commercial invoice, packing list and origin certificate application, while the factory produces the delivery challan and the production counts behind it. Under FOB the factory usually is the exporter of record and takes on the full commercial document set. Settle who does what in writing before the first shipment, because the split varies by arrangement.

### What most commonly delays a garment shipment at the document stage?

Consistency failures between documents that were each individually correct: a style described one way on the invoice and another on the bill of lading, a quantity mismatch because the packing list was drafted before a last-minute shortfall, estimated weights that disagree with the carrier weighing, gaps in the carton numbering that trigger a physical verification, shipping marks on the cartons that do not match the paperwork, and origin certificates applied for too late. These happen because different people produce different documents from different sources at different times.

### What should a factory retain for audits after the goods have shipped?

Enough to reconstruct the quantity story for each lot: what was cut, what was received into finished goods and at what A and B grade split, what was dispatched on which challan and when, and what accounts for the difference. Keep the challans themselves, the B-grade records by defect type, and damage reports with their photo evidence. Retention periods vary by jurisdiction and by contract, so ask your buyer and your customs house agent and record the answer. The practical advantage of keeping the production counts rather than only the documents is that a file proves what you stated while a scan-based ledger proves what actually happened.

One last time, because it matters: everything above describes general practice as a factory owner encounters it, and none of it is legal or compliance advice. Requirements differ by country, destination, product and trade agreement, and they move. Use this as a map for the conversation with your freight forwarder or customs house agent, and let them give you the answer for your shipment.

*Santosh Rijal is the founder of [Scan ERP](https://scanerp.pro/), a garment manufacturing ERP system designed for factory floor operations. He works directly with sewing lines, cutting rooms, and production supervisors across Nepal's garment manufacturing sector.*