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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
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…

Missed sailing from a wrong vehicle list: the domino effect on your deadline Image generated with AI — read our AI transparency notice.
Guides

Missed sailing from a wrong vehicle list: the domino effect on your deadline

A single outdated number on the vehicle list, or a mismatch with the GMR or PBN, can wreck ferry check-in. Denied…

Undischarged ATA carnet and double VAT: the traps of import clearance in Germany Image generated with AI — read our AI transparency notice.
Guides

Undischarged ATA carnet and double VAT: the traps of import clearance in Germany

A faulty import clearance in Germany or an unsettled ATA carnet can cost twice: forfeiture of the ATA security, extra…

Cargo stuck in Ireland without a PBN: who pays for the standstill and the missed sailing Image generated with AI — read our AI transparency notice.
Guides

Cargo stuck in Ireland without a PBN: who pays for the standstill and the missed sailing

Without a valid PBN and a good-to-proceed status, a truck cannot board the ferry or leave the terminal in Ireland. That…

Trade fair logistics: delivering to Espace Gruyère in Bulle Image generated with AI — read our AI transparency notice.
Exhibition logistics

Trade fair logistics: delivering to Espace Gruyère in Bulle

A guide to trade fair logistics for Espace Gruyère in Bulle: customs procedures, booth equipment transport, and Swiss…

Missing SPS certificate or SIVEP pre-notification: how you lose sensitive goods at the border Image generated with AI — read our AI transparency notice.
Guides

Missing SPS certificate or SIVEP pre-notification: how you lose sensitive goods at the border

Goods of animal or plant origin without a health certificate and pre-notification will be stopped at a border control…

Trade fair transport to Finland: Helsinki and Messukeskus Image generated with AI — read our AI transparency notice.
Exhibition logistics

Trade fair transport to Finland: Helsinki and Messukeskus

Delivering stand build and exhibits to a Finnish trade fair works differently from continental routes, because a Baltic…

Vehicle lists and sailing manifests on ferries to GB and IE Image generated with AI — read our AI transparency notice.
Border procedures

Vehicle lists and sailing manifests on ferries to GB and IE

A vehicle list and a sailing manifest set out the vehicles and loads a ferry operator needs before check-in on routes…

Trade Fair Logistics: Exhibition Centre Liverpool UK Image generated with AI — read our AI transparency notice.
Exhibition logistics

Trade Fair Logistics: Exhibition Centre Liverpool UK

Planning transport of stand builds or exhibits to Exhibition Centre Liverpool? Check customs clearance requirements and…

German import customs and the ATA Carnet: permanent versus temporary import Image generated with AI — read our AI transparency notice.
Border procedures

German import customs and the ATA Carnet: permanent versus temporary import

You are taking equipment to Germany for a trade fair or for good, and you do not know whether you need import clearance…

Machinery customs clearance in the Netherlands: importing machines through NL ports Image generated with AI — read our AI transparency notice.
Border procedures

Machinery customs clearance in the Netherlands: importing machines through NL ports

The machine has arrived in Rotterdam and you do not know what comes next. Importing heavy equipment through the…

SIVEP: France's veterinary and phytosanitary border checks Image generated with AI — read our AI transparency notice.
Border procedures

SIVEP: France's veterinary and phytosanitary border checks

SIVEP is France's veterinary and phytosanitary border inspection service. We explain which goods it covers on import to…

Trade fair logistics: delivery of stands and exhibits to EXPO Krakow Image generated with AI — read our AI transparency notice.
Exhibition logistics

Trade fair logistics: delivery of stands and exhibits to EXPO Krakow

Learn how to manage the delivery of exhibition stands and goods to the EXPO Krakow convention centre in Czyzyny.

Missing EORI or wrong VAT: why customs blocks the shipment and how to prevent it Image generated with AI — read our AI transparency notice.
UK and Brexit

Missing EORI or wrong VAT: why customs blocks the shipment and how to prevent it

A missing EORI or an invalid VAT number stops the customs declaration, and the truck sits idle at your cost, no matter…

Who Is Liable for Damage During Loading and Unloading | OTSL Image generated with AI — read our AI transparency notice.
Guides

Who Is Liable for Damage During Loading and Unloading | OTSL

How liability splits between driver, loader and consignee during loading and unloading, the role of the tail lift and…

Trade Fair Logistics at Expo Silesia Sosnowiec: Delivery Guide Image generated with AI — read our AI transparency notice.
Exhibition logistics

Trade Fair Logistics at Expo Silesia Sosnowiec: Delivery Guide

Practical guide on trade fair logistics, transport planning, and customs documentation for deliveries to the Expo…

The fake carrier: how a fraudster steals your freight by impersonating a real company Image generated with AI — read our AI transparency notice.
Guides

The fake carrier: how a fraudster steals your freight by impersonating a real company

A fraudster impersonates a genuine haulier, collects your goods at loading, and vanishes. Learn the red flags and how…

No ENS/ICS2 or GVMS/GMR: why your truck gets stuck at the UK border and who pays for the delay Image generated with AI — read our AI transparency notice.
UK and Brexit

No ENS/ICS2 or GVMS/GMR: why your truck gets stuck at the UK border and who pays for the delay

Without an ENS/ICS2 declaration and a GMR number from GVMS, a truck will not board the ferry and can be held or turned…

Driver Hours, the Tachograph and Your Deadline: Why "Drive Faster" Does Not Exist Image generated with AI — read our AI transparency notice.
Guides

Driver Hours, the Tachograph and Your Deadline: Why "Drive Faster" Does Not Exist

Driver rest periods are fixed, the tachograph records everything, and tampering risks losing the operator licence. Here…

Container demurrage and detention: where the charges come from and how to cut them to zero Image generated with AI — read our AI transparency notice.
Guides

Container demurrage and detention: where the charges come from and how to cut them to zero

Demurrage and detention grow every single day and can exceed the freight itself, here is how they work and how we keep…

Delivering to a Sanctioned Party: the Forwarder's Liability, Not Just the Client's Image generated with AI — read our AI transparency notice.
Guides

Delivering to a Sanctioned Party: the Forwarder's Liability, Not Just the Client's

A sanctions breach exposes every link in the chain, including the carrier and forwarder. See how party and dual-use…

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