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Knowledge base

Knowledge base

Practical guides on transport to the UK, customs clearance, exhibition logistics and warehousing.

We write about what actually holds a load at the border: documents, customs, returns and warehousing. No filler, just usable detail.

What is in the OTSL knowledge base?

The OTSL knowledge base is practical articles on international road freight: customs clearance and border procedures (SIVEP, GMR, PBN, ATA carnet), transport to the United Kingdom, Ireland and Switzerland, trade fair logistics, warehousing and returns. We cover the real risks and how to prevent them before they hit your cargo.

Not sure what an industry acronym means? Check the glossary. Glossary Convert pallets to loading metres or print a shipping checklist in our tools. Tools and calculator
ATA Carnet or temporary admission: what to choose for trade fairs and temporary equipment export Image generated with AI — read our AI transparency notice.
Guides

ATA Carnet or temporary admission: what to choose for trade fairs and temporary equipment export

OTSL decision guide: when to choose an ATA Carnet and when standard temporary admission for exhibits, stands and…

FTL or LTL (groupage): when to choose which in road freight Image generated with AI — read our AI transparency notice.
Guides

FTL or LTL (groupage): when to choose which in road freight

OTSL decision guide: when a full truckload (FTL) pays off and when groupage (LTL) does. How to choose by volume…

T1 or T2 Transit: When to Use Which and Why Both Get Confused Image generated with AI — read our AI transparency notice.
Guides

T1 or T2 Transit: When to Use Which and Why Both Get Confused

OTSL decision guide: T1 for non-EU goods with duties suspended, T2 in the context of EU customs status. The choice is…

Odour and cross-contamination: why a foreign smell disqualifies food and cosmetics Image generated with AI — read our AI transparency notice.
Inspection and recovery

Odour and cross-contamination: why a foreign smell disqualifies food and cosmetics

Odour-absorbing products, meaning food, coffee, tea, cosmetics and pet food, can take on a foreign smell from a…

Shortage and overage at unloading: how to count pallets and protect your claim Image generated with AI — read our AI transparency notice.
Inspection and recovery

Shortage and overage at unloading: how to count pallets and protect your claim

When you take delivery, the number of pieces and pallets received must match the transport documents. A shortage…

Moisture and mould in cargo: when the goods are already lost Image generated with AI — read our AI transparency notice.
Inspection and recovery

Moisture and mould in cargo: when the goods are already lost

Temperature differences inside a trailer or container condense moisture on the walls and roof, from where it drips onto…

Exhibition Logistics: Delivery of Stand Build and Exhibits to The Convention Centre Dublin Image generated with AI — read our AI transparency notice.
Exhibition logistics

Exhibition Logistics: Delivery of Stand Build and Exhibits to The Convention Centre Dublin

Accessing The Convention Centre Dublin requires navigating city centre traffic. Learn the essential rules for…

Breakage of fragile cargo: how to segregate, document and safely dispose of it Image generated with AI — read our AI transparency notice.
Inspection and recovery

Breakage of fragile cargo: how to segregate, document and safely dispose of it

With fragile cargo a single breakage rarely stops at one item. Shards, spills and pressure can contaminate or damage…

Cargo after a collision or a rolled-over trailer: inspection and the decision on what happens to the goods Image generated with AI — read our AI transparency notice.
Inspection and recovery

Cargo after a collision or a rolled-over trailer: inspection and the decision on what happens to the goods

After a road incident, goods can be damaged even when they look fine from the outside. See why a post-accident…

The damage report in transport: how to draw it up and which evidence to preserve Image generated with AI — read our AI transparency notice.
Inspection and recovery

The damage report in transport: how to draw it up and which evidence to preserve

A damage report is the document which, with photos and a description, records the extent and nature of cargo damage. We…

How to classify goods correctly: HS/CN codes, BTI and tariff tools Image generated with AI — read our AI transparency notice.
Border procedures

How to classify goods correctly: HS/CN codes, BTI and tariff tools

Correct tariff classification starts from the characteristics of the goods, not the invoice name: description, General…

Transit guarantee: how it works and what happens if transit is not discharged Image generated with AI — read our AI transparency notice.
Border procedures

Transit guarantee: how it works and what happens if transit is not discharged

A transit procedure suspends duty and taxes while goods move, but in return it requires a guarantee. We explain what it…

Sanitary checks on a load at the UK border: step by step at a control post (BCP) Image generated with AI — read our AI transparency notice.
Border procedures

Sanitary checks on a load at the UK border: step by step at a control post (BCP)

What a sanitary check on a load at the UK border looks like in practice: documentary, identity and physical checks at a…

Rules of origin and the EUR.1 certificate: the formal conditions of customs preference Image generated with AI — read our AI transparency notice.
Border procedures

Rules of origin and the EUR.1 certificate: the formal conditions of customs preference

Rules of origin decide whether goods qualify for a preferential duty rate at all. We explain sufficient processing, the…

Trade Fair Logistics at Coventry Building Society Arena: Transport & Customs Image generated with AI — read our AI transparency notice.
Exhibition logistics

Trade Fair Logistics at Coventry Building Society Arena: Transport & Customs

How to efficiently transport stand elements and exhibits to Coventry Building Society Arena in the UK following customs…

ADR checks at the border and en route: documents, marking and the faults that stop dangerous goods Image generated with AI — read our AI transparency notice.
Border procedures

ADR checks at the border and en route: documents, marking and the faults that stop dangerous goods

What an ADR check actually verifies when you move dangerous goods, which documents and marking must match, and the…

ISPM 15: when a wooden pallet or crate holds your cargo at the border Image generated with AI — read our AI transparency notice.
Border procedures

ISPM 15: when a wooden pallet or crate holds your cargo at the border

In trade outside the European Union, wood packaging, meaning pallets, crates and dunnage, must be treated and carry the…

How to distribute a load to pass the weighbridge: axle weights in practice Image generated with AI — read our AI transparency notice.
Border procedures

How to distribute a load to pass the weighbridge: axle weights in practice

A practical guide to load distribution: how to place heavy items on the trailer, how pre-selection and static…

GVMS and GMR step by step: preparing a movement for the UK border Image generated with AI — read our AI transparency notice.
Border procedures

GVMS and GMR step by step: preparing a movement for the UK border

The GMR is the number without which a driver cannot board a ferry or the Eurotunnel. We walk through how to link…

Exhibition logistics to Dewars Centre in Perth: booth and exhibit delivery Image generated with AI — read our AI transparency notice.
Exhibition logistics

Exhibition logistics to Dewars Centre in Perth: booth and exhibit delivery

Practical guide to organizing freight transport and customs clearance for exhibitors shipping equipment to Dewars…

Incoterms mismatch DAP versus DDP: who really pays customs duty and import VAT Image generated with AI — read our AI transparency notice.
Guides

Incoterms mismatch DAP versus DDP: who really pays customs duty and import VAT

When seller and buyer read the delivery term differently, the border produces an unexpected bill and a held shipment…

A broken cold chain: why goods become un-sellable before they physically spoil Image generated with AI — read our AI transparency notice.
Inspection and recovery

A broken cold chain: why goods become un-sellable before they physically spoil

A temperature excursion recorded by the data logger lets the receiver or the food-safety authority reject the whole…

ADR spill in transit: what damaged dangerous-goods packaging really costs Image generated with AI — read our AI transparency notice.
Inspection and recovery

ADR spill in transit: what damaged dangerous-goods packaging really costs

A chemical leak, a damaged lithium cell or a breached ADR pallet is not a fender bender. It means neutralisation…

Trade Fair Logistics East of England Arena Peterborough Image generated with AI — read our AI transparency notice.
Exhibition logistics

Trade Fair Logistics East of England Arena Peterborough

How to organise transport of exhibition stands and exhibits to East of England Arena and Events Centre in Peterborough.

Mis-declared ADR goods: what happens when hazardous cargo travels as an ordinary pallet Image generated with AI — read our AI transparency notice.
Guides

Mis-declared ADR goods: what happens when hazardous cargo travels as an ordinary pallet

When dangerous cargo travels as an ordinary pallet or with the wrong UN number, class or packing group, a roadside…

Trade Fair Logistics: Transport to Eden Court in Inverness Image generated with AI — read our AI transparency notice.
Exhibition logistics

Trade Fair Logistics: Transport to Eden Court in Inverness

How to plan freight transport for events at Eden Court in Inverness. Learn about UK customs procedures, routing and…

Cross-contamination in a food-grade warehouse: one mistake and the whole batch goes to disposal Image generated with AI — read our AI transparency notice.
Warehousing and repacking

Cross-contamination in a food-grade warehouse: one mistake and the whole batch goes to disposal

An allergen on the wrong pallet, chemicals next to food, a pest in the store: one mistake in a food warehouse can write…

Trade Fair Logistics: Deliveries to EICC in Edinburgh Image generated with AI — read our AI transparency notice.
Exhibition logistics

Trade Fair Logistics: Deliveries to EICC in Edinburgh

Technical guide on organising trade fair logistics and customs clearances for events at Edinburgh International…

Goods expired in the warehouse: who is responsible and how to prevent it Image generated with AI — read our AI transparency notice.
Warehousing and repacking

Goods expired in the warehouse: who is responsible and how to prevent it

Stock expires in the warehouse when nobody controls rotation and dates. See who is responsible for FIFO/FEFO, what it…

VOEC mishandled on a Norway shipment: double VAT, returns and a lost customer Image generated with AI — read our AI transparency notice.
Destinations and markets

VOEC mishandled on a Norway shipment: double VAT, returns and a lost customer

When VOEC is mishandled, the Norwegian border charges VAT a second time. The result is double tax, delay, a refused…

EUR.1 or origin declaration error on shipments to Switzerland: why the Swiss importer pays full duty Image generated with AI — read our AI transparency notice.
Destinations and markets

EUR.1 or origin declaration error on shipments to Switzerland: why the Swiss importer pays full duty

One mistake in the preferential origin proof and your Swiss importer loses the zero or reduced rate and pays full…

Peak season without secured trucks: why "I will book transport at the last minute" is a false economy Image generated with AI — read our AI transparency notice.
Guides

Peak season without secured trucks: why "I will book transport at the last minute" is a false economy

In peak season, once market capacity is gone, a last-minute order simply finds no truck. We show what that really costs…

Carrier's lien for unpaid freight: why your cargo can be held over someone else's debt Image generated with AI — read our AI transparency notice.
Guides

Carrier's lien for unpaid freight: why your cargo can be held over someone else's debt

A carrier has the right to hold your goods until the freight is paid. If your forwarder never paid the actual haulier…

Un-discharged T1 transit: the guarantee is drawn and duty plus VAT land on you Image generated with AI — read our AI transparency notice.
Border procedures

Un-discharged T1 transit: the guarantee is drawn and duty plus VAT land on you

When a T1 transit is not discharged in NCTS, the guarantee is drawn and import duty plus VAT fall due on the principal…

Trade Fair Logistics: Transport to Eikon Exhibition Centre Lisburn Image generated with AI — read our AI transparency notice.
Exhibition logistics

Trade Fair Logistics: Transport to Eikon Exhibition Centre Lisburn

Transporting trade fair stands and exhibits to Eikon Exhibition Centre in Lisburn, UK. Customs procedures, ATA Carnets…

Machine stuck in a Dutch port: the bill for storage and demurrage Image generated with AI — read our AI transparency notice.
Guides

Machine stuck in a Dutch port: the bill for storage and demurrage

An incomplete import clearance of machinery through the Netherlands can hold the equipment in port for days. Storage…

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