Why load security matters

An unsecured or badly distributed load is one of the most common reasons candidates fail the Module 4 demonstration. The examiner is checking that you understand the risks, not that you can recite the law word for word. Loose loads can shift under braking or cornering, change the handling of the vehicle, fall from the vehicle, or cause injury during loading and unloading.

Legal responsibility

• The driver, the operator and the person who loaded the vehicle can all be prosecuted if a load is not secure - responsibility is shared, not just the driver's.
• The Road Traffic Act and the Construction and Use Regulations require every load to be secured so it cannot fall or be dislodged in normal driving conditions, including emergency braking.
• Under GB drivers' hours and roadworthiness rules, DVSA can prohibit a vehicle on the spot for an insecure load.

Weight distribution

• Weight should be spread evenly across the axles - too much weight on the front axle affects steering, too much on the rear reduces steering grip and can overload the drive axle.
• Never exceed the vehicle's plated gross weight, individual axle weights, or the Maximum Authorised Mass (MAM).
• Heavy items go low and central, ideally over or just ahead of the driving axle, to keep the centre of gravity low and stable.

Methods of restraint

• Common methods: curtains (not a securing method on their own), webbing straps, ratchet straps, chains, load bars, load boards, nets, and friction matting.
• As a rule of thumb, restraint should be able to withstand forces of 100% of the load's weight forwards, 50% rearwards, and 50% sideways.
• Always check straps and equipment for damage, fraying or corrosion before use - never use damaged restraint equipment.

Practical checks for the demo

• Explain that you would check the load before departure, during a break, and after any incident that could have caused shifting.
• Point out how you would use headboards, load bars, or bulkheads where fitted.
• Mention checking the trailer or body floor is clean, dry and free of debris that could reduce friction.
• Talk through blocking, chocking or dunnage to stop loads sliding, and how mixed loads should have heavier items underneath.

Common mistakes to avoid

• Assuming curtains alone will hold a load - they only contain, they do not restrain against major shifting forces.
• Forgetting to check straps mid-route on longer journeys.
• Uneven weight distribution causing axle overloads even when total gross weight is legal.
• Not accounting for load shift risk on high-sided or unstable loads like pallets or drums.

What examiners are checking

Module 4 includes a set of demonstration and safety questions, and clandestine entrants (people hiding in or on your vehicle to cross a border illegally) is one of the standard topics. You need to show you understand the legal duty on drivers and operators, and the physical checks that prevent it.

The legal position

• Under the Immigration and Asylum Act 1999 (as amended by the Nationality, Immigration and Asylum Act 2002), a driver, owner or hirer of a vehicle can be fined for EACH clandestine entrant found on board.
• The maximum civil penalty is currently up to £2,000 per person for the driver, with further penalties possible for the operator/hirer of the vehicle if they failed to operate an effective system of checks.
• A 'clandestine entrant' is someone hiding with intent to enter the country without going through proper immigration control - this applies mainly at ports, Channel crossings (ferry, Eurotunnel) and international routes.
• You can raise a valid statutory defence only if you can show you operated an effective system to prevent clandestine entrants AND that system was properly operated on this occasion.

The effective system of checks

Examiners want to hear a clear, structured checking routine, done BEFORE and AFTER the vehicle is left unattended, and again before boarding a ferry/train. A thorough check covers:

• Exterior: check all doors, shutters, roller doors, curtains, spare wheel carrier, toolboxes, fuel tanks, and the underside of the trailer.
• Trailer seals and locks: check the security seal number matches the paperwork and is intact, not broken or re-fixed.
• Load area: if empty, check nothing and no one is inside; if loaded, check nothing has been disturbed since loading.
• Roof: check the roof and roof vents where accessible, as entrants climb onto trailers.
• Documentation: keep a written record of every check (a checklist), including date, time, place and signature - this record IS your evidence of an effective system.

Physical security habits

• Always lock the vehicle and trailer whenever it's left unattended, even for a few minutes.
• Park in well-lit, secure areas - official lorry parks rather than laybys, especially near ports.
• Fit and use extra security such as high-security seals, air line and door locks where provided by the operator.
• Do not accept lifts for strangers or agree to carry unknown packages.

Common mistakes to avoid in the demo

• Saying 'I'd just check the doors are locked' - not detailed enough; examiners want the full systematic routine.
• Forgetting to mention the WRITTEN record of checks - this is what proves the defence in law.
• Confusing this with drivers' hours or loading rules - keep the answer focused on security and immigration law.
• Not mentioning checking BEFORE joining the docks/port area as well as after.

Why safety checks matter in Module 4

DVSA examiners test whether you can identify vehicle defects and explain the correct action. This mirrors the daily walkaround check every professional driver must do before setting off. You will be asked around five vehicle safety questions, often including at least one 'show me' task where you physically demonstrate a check.

The daily walkaround check

Do a full walkaround before every journey, checking:

• Tyres: tread depth, pressure, damage, correct type, no cuts or bulges
• Wheels and wheel nuts: none missing, no rust trails (a sign a nut is loose)
• Lights, indicators, reflectors and number plates: clean and working
• Mirrors and glass: clean, secure, undamaged
• Bodywork, wings and mudguards: securely fitted, no sharp damage
• Fuel and oil leaks underneath the vehicle
• Coupling security on artics and trailers, including electrical and air lines
• Load security, including sheeting, straps and markers

The exact figures examiners expect

• Tyre tread depth minimum: 1mm across the central three-quarters of the tread, around the entire circumference, for most goods vehicles over 3.5 tonnes
• Tyres must be the correct pressure for the load, checked when cold
• No two tyres on the same axle should be different types (e.g. radial and cross-ply mixed)
• Free play in the steering wheel should be minimal; excessive play is a defect
• Warning lights on the dashboard must be checked and understood before moving off
• Mirrors must give an adequate view; adjust before driving, not while moving

Reporting and acting on defects

• Any defect found must be reported using the operator's defect reporting system, usually a driver's daily walkaround check sheet
• A dangerous defect means the vehicle must not be driven
• Minor defects should still be reported and monitored
• 'Prohibition notices' can be issued by DVSA/police examiners for serious defects, taking the vehicle off the road
• Drivers are legally responsible for the roadworthiness of the vehicle they drive, alongside the operator

Common mistakes candidates make

• Rushing the walkaround and missing obvious defects like a cracked light lens
• Not knowing the 1mm tread depth figure precisely
• Confusing driver checks with the annual MOT-equivalent test (they are separate)
• Forgetting to check coupling security on trailers
• Not explaining WHY a check matters, only what to do

Exam tip

Examiners want you to talk through what you are checking and why, not just point at things silently. Narrate the check as if training a new driver.

Emergency and fire procedures

Module 4 examiners want to see that you know what to do BEFORE an emergency happens, not just after. This means correct loading, correct equipment checks, and a calm, methodical response if a fire or breakdown occurs.

Fire risks on an HGV

• The engine bay, exhaust system and turbo are the most common fire sources due to heat and oil or fuel leaks.
• Overheated brakes (common on long descents) can ignite dust and debris.
• Electrical faults, chafed wiring and blown fuses are a frequent hidden cause.
• Flammable or hazardous loads massively increase risk, so load segregation and correct placarding matter.

Fire extinguishers

• Most goods vehicles carry a minimum 2kg dry powder extinguisher; larger fleets often carry more.
• Vehicles carrying dangerous goods under ADR rules need specific extinguisher capacity based on vehicle weight, commonly 2kg plus a further 6kg extinguisher for larger vehicles.
• Check the extinguisher's gauge, seal and pressure at every daily walkaround check, not just annually.
• Know where it is stowed and how to release it quickly, ideally practise this before you ever need it for real.

What to do if a fire starts

• Stop the vehicle in a safe place as soon as possible, away from other traffic, buildings and fuel sources.
• Switch off the engine to cut fuel supply and stop the electrics feeding the fire.
• Get everyone out of the cab and well away, at least 20 metres if the load may explode or is hazardous.
• Call 999 immediately, giving exact location, what is on fire and whether it's a hazardous load.
• Only attempt to fight a small fire yourself if it is safe to do so, never open the bonnet fully on an engine fire as extra oxygen will make it worse, just crack it slightly to get the extinguisher nozzle in.
• Never risk your life trying to save the vehicle or load.

Breakdowns and other emergencies

• Get the vehicle off the carriageway if possible; if not, keep it as far left as you can with hazard lights on.
• On a motorway, exit via the nearest hard shoulder or emergency area, put on a hi-vis vest before leaving the cab, and exit on the left away from traffic.
• Use a warning triangle at least 45 metres behind the vehicle on normal roads (never on a motorway hard shoulder).
• Contact the emergency services or your control centre and, on a smart motorway, use the roadside emergency phone rather than a mobile if possible so your location is pinpointed.

Common exam mistakes

• Forgetting to mention switching off the engine.
• Not stating a safe distance for people to move away from the vehicle.
• Confusing the triangle distance or where to stand on a motorway.
• Failing to mention checking extinguisher condition during walkaround checks.

Why this topic matters

Drivers of buses, coaches and lorries are more exposed to robbery, hijack and assault than most workers because they carry cash, valuable loads or lone passengers and often work early mornings, late nights or isolated routes. Module 4 tests whether you understand how to reduce that risk before, during and after a journey.

Before you set off

• Plan your route in advance and let your control room or a family member know your timings.
• Vary your routes and rest stops where possible so you are not predictable.
• Keep cash, phones and valuables out of sight, ideally in a time-delay safe if the vehicle has one.
• Make sure cab doors lock automatically once you pull away and that windows are not left wide open.

While driving and at stops

• Keep doors locked on the move, especially in slow-moving urban traffic where opportunist theft from cabs happens at junctions and lights.
• Choose well-lit, busy, official parking areas for breaks and overnight stops, not isolated laybys.
• Reverse into or position the vehicle so a quick exit is possible if needed.
• Do not open the door to strangers claiming a fault with your vehicle. Check mirrors and CCTV first.
• For PCV drivers: keep a professional but firm manner with disruptive passengers, use CCTV as a deterrent, and know your operator's lone-worker and panic-alarm procedure.

If you are threatened

• Personal safety comes before the load or the cash. Do not fight for goods or money.
• Use a panic alarm or covered radio call to base if fitted; many operators require a coded distress phrase.
• If hijacked, comply, stay calm, and try to remember details (description, registration, direction) only once safe.
• Report every incident, near-miss or suspicious approach to your employer and the police as soon as it is safe to do so.

Common mistakes in the demo

• Forgetting to mention informing the operator/control room of plans and any incident afterwards.
• Only talking about locking doors and missing route planning, cash security, and choice of stopping place.
• Suggesting a driver should confront or chase an attacker, which examiners mark down. The correct answer is always personal safety first, non-confrontation, and reporting.
• Ignoring driver CPC periodic training's link to this topic: security awareness is a mandatory syllabus theme, not just common sense.

Why this matters in the Module 4 demo

The examiner will ask you to explain or demonstrate roadworthiness checks and the paperwork that proves a vehicle is legal to be on the road. This is a favourite topic because it links directly to operator licence compliance and driver CPC's core aim: safer, legal vehicles.

Daily walkaround check

Every driver must complete a walkaround check before the first journey of the day. Check tyres (tread depth, damage, pressure), lights and indicators, mirrors, wipers and washers, horn, number plates, fuel/oil/coolant leaks, exhaust, load security, and coupling on artics or trailers. Report any defect using the defect reporting system (paper book or electronic) before driving.

Tyre limits

• Minimum legal tread depth is 1mm across the central three-quarters of the tyre breadth, around the entire circumference, for goods vehicles over 3.5 tonnes.
• No cuts over 25mm or 10% of the tyre section width, whichever is greater, exposing the cords.
• Retreaded and mismatched tyre types are not allowed on the same axle on many vehicle types - check manufacturer guidance.

Key documents to carry or have available

• Driver CPC card (must be carried when driving professionally).
• Digital tachograph driver card, inserted correctly.
• Vehicle registration document (V5C, though not always carried).
• Operator's licence disc, displayed on the vehicle.
• MOT certificate (goods vehicles over 3.5 tonnes need an annual test).
• Insurance and, for international work, the driver CPC card plus vehicle documents required for the country being visited (for example ADR certificate if carrying dangerous goods).

Defect reporting and the maintenance record

Drivers must report defects immediately, even minor ones, and the operator must record and rectify them before the vehicle is used again if the defect affects safety. A nil defect report still has to be completed and kept. These records support the operator's licence and can be inspected by DVSA.

Common mistakes examiners look for

• Skipping the walkaround check or doing it too fast to be genuine.
• Not knowing the legal tyre tread depth figure (1mm).
• Forgetting that a prohibition can be issued on the spot for a dangerous defect, taking the vehicle off the road immediately.
• Confusing MOT testing with routine safety inspections - MOT is annual, safety inspections are more frequent (commonly every 6-10 weeks depending on the operator's licence undertaking).
• Not explaining WHY a check matters (link it to safety and legal compliance), not just listing items.