UK Logistics Glossary

Why the courier industry runs on so many acronyms

Three reasons. First, international shipping is regulated under treaties — IATA for air, IMDG for sea, ADR for road, GDP for medicines — that use formal terminology with three- and four-letter shorthand. Second, the industry crosses jurisdictions where the same concept has different names in different countries; acronyms force common ground between an Asian shipper, a UK forwarder, and a German consignee. Third, urgent dispatch rewards brevity: a dispatcher tagging a job UN3373 GDP DDP Heathrow knows exactly what to do without further explanation.

The trouble is that the buyer placing the booking rarely knows the language. The result is the kind of failure that destroys relationships: a buyer says "standard same-day" believing they have ordered courier transport, and discovers at collection that the cargo (lithium batteries, dry-ice, blood products) needs a regulated service they did not specify. We built this glossary to close that gap — entries that tell you what the term means, when you encounter it, and what action the term implies.

Air freight and aviation terms

The vocabulary most likely to surface around airport collection and international urgent delivery. AOG (aircraft on ground) marks the highest-priority class of aerospace work; a grounded commercial aircraft costs $10,000-$150,000 per hour, so AOG jobs run on dedicated 30-minute dispatch. AWB (air waybill) is the international consignment note for air cargo — the document you reference when collecting from a cargo terminal.

On the dangerous-goods side, IATA Class 9 covers lithium batteries and other miscellaneous hazards in air transport, and DGR (dangerous goods regulations) is the IATA-published rulebook that governs air dangerous-goods shipments. Get the classification wrong and the airline refuses the consignment at the terminal — we assess at quote stage to avoid this.

Adjacent operational terms: ULD (unit load device — the standardised pallet or container an aircraft loads), cargo IMP (special handling codes used in air cargo systems), and the Heathrow air freight collections service that handles direct cargo-shed pickup with permanent airside access.

Pharmaceutical, biological, and cold-chain terms

The most regulation-heavy vocabulary in our catalogue. GDP (Good Distribution Practice) is the EU/MHRA standard for medicinal product transport — calibrated temperature logging, signed handover, deviation reporting. UN3373 is the air-and-road classification for Category B biological substances (clinical specimens, blood, tissue) — drives the triple-packaging requirement that gives biological samples their distinctive diamond marking. The biological samples courier service is built around UN3373 compliance.

Cold-chain bands have specific temperature definitions: ambient (+15 to +25°C), chilled (+2 to +8°C), frozen (-18 to -25°C), deep-frozen (-80°C dry-ice). The choice of band drives vehicle type — see temperature-controlled transport for the operational detail.

Adjacent terms: biohazard shipping (broader category covering biological hazards beyond UN3373), and ATMP (advanced therapy medicinal products — cell and gene therapies that demand the most stringent cold-chain validation on the market).

Hazardous goods and dangerous-cargo terms

The road-transport equivalent of DGR is ADR — the European Agreement concerning the international carriage of Dangerous goods by Road. ADR splits cargo into 9 classes (explosives, gases, flammable liquids and solids, oxidising substances, toxic substances, radioactive, corrosive, and miscellaneous). Each class has its own packaging, labelling, vehicle, and driver-training rule. See hazardous goods transport for the operational service.

Adjacent terms: HAZCHEM (UK-specific emergency-action code on hazardous vehicles), the orange-board marking (the UN number and hazard identification number displayed on every ADR vehicle), and the small-load exemption (the per-class threshold below which an ADR vehicle is not required).

Special category: lithium batteries. Class 9 (UN3480 for stand- alone cells, UN3481 for cells installed in or packed with equipment) drives the modern boom in regulated transport because of EV and energy-storage growth. Damaged or defective lithium cells (packing instruction P911 / LP906) need dedicated DGR-rated vehicles with fire-suppression equipment.

UK regulatory zones and vehicle compliance

The vocabulary that surrounds operating vehicles inside the UK, particularly in clean-air zones and London-specific schemes. ULEZ (Ultra Low Emission Zone) covers Greater London inside the M25 perimeter, charging non-compliant cars and vans £12.50 per day. The LEZ (Low Emission Zone) is the goods-vehicle equivalent at £100 per day for non-compliant trucks.

CAZ (Clean Air Zones) operate in Birmingham, Bristol, Bath, Sheffield, Bradford, and Tyneside with similar per-day charges for non-compliant vehicles. DVS (Direct Vision Standard) is the London-specific HGV scheme requiring 3-star rating from October 2024. CPC is the driver compliance scheme; tachograph regulation governs HGV driving hours.

For our fleet, vans are ULEZ and CAZ compliant; HGV jobs that enter London are arranged on DVS-compliant vehicles. The compliance overhead does not show on the invoice; the alternative (PCN exposure on every entry violation) makes compliance the only sensible operating posture for any recurring London or CAZ work.

Customs, EORI, Incoterms, and international shipping

The post-Brexit operating environment for UK-EU shipping added a customs documentation layer that did not exist pre-2021. EORI (Economic Operator Registration and Identification) is the customs registration number that every business shipping commercial cargo across the UK border now needs. HS codes (Harmonised System commodity codes) classify cargo for duty calculation. CDS (Customs Declaration Service) replaced the older CHIEF system as the UK government's import/export declaration platform.

Incoterms (International Commercial Terms) define who pays for each leg of an international shipment and who handles customs on each side. The most common are: DDP (Delivered Duty Paid — shipper handles everything including UK duty); DDU (Delivered Duty Unpaid — shipper handles transport, buyer pays duty); EXW (Ex Works — buyer collects from shipper's premises and handles everything); FCA (Free Carrier — shipper delivers to named carrier, buyer handles onward); FOB (Free on Board — sea freight equivalent of FCA). Get the Incoterm wrong and one party gets a duty bill they did not budget for.

Adjacent terms: bonded warehouse (duty-deferred storage useful for high-value imports awaiting UK sale), cabotage (restrictions on foreign hauliers carrying domestic UK loads), and CMR (the international consignment note used for road freight across European borders). See our UK customs brokerage service for the operational support side.

Freight, pallet, and operational terms

The everyday vocabulary of road freight and pallet networks. CBM (cubic metres) is the volumetric measurement that, combined with weight, decides which vehicle gets the job. Pallet types: UK CHEP (1200×1000mm), Euro (1200×800mm), and quarter (600×400mm) define the standard footprints; over-height pallets pop you into a custom vehicle category.

Pickup-and-delivery operational terms: POD (proof of delivery) is the timestamped, signed-or-photo confirmation that the consignee accepted the cargo; without POD, the consignment is treated as undelivered. Manifest is the list of cargo on a vehicle. Consignment is a single shipment; a multi-consignment vehicle is on a consolidated route.

Freight-specific: FTL (full truck load) vs LTL (less than truck load) is the cost-tier choice for road freight. FTL gets your cargo a dedicated truck; LTL consolidates with other shipments at significantly lower per-kg cost. Groupage is the European-freight equivalent of LTL. Demurrage is the per-day charge for holding a container past the agreed collection slot — a real cost on import freight where customs clearance overruns.

Driver, vehicle, and operational terminology

The day-to-day language of running a courier vehicle. CPC (Driver Certificate of Professional Competence) is the mandatory professional qualification for HGV and PCV drivers in the UK and EU — 35 hours of periodic training every 5 years. Tachograph is the recording device that logs HGV driving hours and rest periods, enforcing EU-wide drivers' hours regulation. The two together govern who can drive what for how long.

Vehicle terms: tail-lift (hydraulic platform on the rear of a van or truck for ground- to-bed loading), curtain-side (a body that unzips along its length for forklift loading from the side), low-loader (a flat-bed trailer with low deck height for oversized equipment), and reefer (refrigerated truck or trailer). Each one signals a vehicle choice that affects loading method, access, and cost.

Operational shorthand: dead leg (an empty return journey — a real cost for long single-leg runs), backload (return-journey cargo that converts a dead leg into a revenue run), trunking (long-distance line-haul between depots), and dispatch (the function that allocates jobs to vehicles in real time).

Insurance, risk, and chain-of-custody

Goods-in-transit insurance is the cargo-cover side of courier operation; it pays out for damage, loss, or theft during transport. Our fleet operates standard goods-in-transit cover, with single-trip extended cover and bespoke schedules arranged for higher-value consignments and specialist sectors (fine-art, prototype hardware). Confirm consignment value at booking. JIT (just-in-time) is the production-management concept that drives much of the urgent-courier industry — lean inventory at the customer site means a missed delivery halts production.

Chain-of-custody is the documented record of who physically handled the cargo, when, and where, from collection to delivery. For legal, government, pharmaceutical, and high-value work, an unbroken chain of custody is the difference between delivery and non-delivery from a documentation standpoint — the cargo can physically arrive on time but be treated as not delivered if the chain has gaps. POD images, named handover, time-stamped scans at every touchpoint, and sealed evidence bags all support this requirement.

Booking and quote vocabulary

The vocabulary you encounter when actually placing a courier booking. Quote — the indicative price for a specific job before booking confirmation. Booking reference — the unique ID we use to track the consignment through dispatch, transit, and POD. Collection window — the agreed time range during which the driver will arrive at the collection point (typically a 30-minute window during business hours; tighter windows available at premium for time-critical work). Delivery window — the agreed time range for delivery (the longer the window, the lower the cost; before-9am and timed-slot delivery carry premiums).

Cargo-description terms: cubic weight (volumetric weight calculated from package dimensions — relevant when the cargo is light but bulky), transit time (the elapsed time from collection to delivery), and ETA vs ETD (estimated time of arrival vs estimated time of departure — the two anchor points of any transit schedule).

POD terminology: POD image — the photographic confirmation delivered as part of the proof package. POD signature — the timestamped signed handover, increasingly used as digital signature on tablet. POD reference — the consignee's internal reference quoted on delivery so we link the consignment to their internal system.

How to use this glossary

Each entry is structured around three questions: what does the term mean in plain English; when do you actually encounter it on a real job; and what action does it imply for your booking. That makes it usable as a working reference rather than a reading exercise. If you encounter a term not listed below, send us the document or specification where you saw it — we will explain the context and add a new entry if it is general enough to merit one.