DVSA Roadside Inspections: What Officers Check and How to Prepare

Key Takeaways

• DVSA roadside inspection is a powers-led check by DVSA traffic and vehicle examiners, often with police, focused on roadworthiness, drivers' hours, load security, and documentation. It can end in a prohibition notice, an on-the-spot fine, or both.
• You are not stopped at random. The DVSA's ANPR network reads your number plate as you approach an encounter site and pulls your operator's OCRS (Operator Compliance Risk Score) in seconds; red and amber operators are pulled in far more often than green ones.
• Prohibitions come in two forms. Immediate stops the vehicle on the spot until the defect is fixed; delayed gives you up to 10 days to put it right. Either form gets an "S" marker if the examiner judges the defect should have been caught at the daily walkaround check.
• Graduated fixed penalties run from £50 to £300 per offence, capped at five offences per driver per stop (so a worst-case roadside fine is £1,500), with separate financial deposits required from non-UK-resident drivers before they can move on.
• The single best preparation is a real, dated, signed daily walkaround check with photos of any defect raised. An "S"-marked prohibition is the operator failing the walkaround test, not just the vehicle failing the inspection.

If you run a van, lorry, or coach for work in the UK, the day a DVSA examiner waves you off the M6 onto the weighbridge at Burton-in-Kendal is the day your compliance paperwork stops being theoretical. They will check the vehicle, they will check the driver, and they will check the operator behind both. If anything is wrong, you find out in real time, on the side of the road, with the cost arriving immediately as a prohibition notice or a graduated fixed penalty.

This post covers the DVSA roadside inspection in plain detail: who gets stopped, what officers actually look at, how the prohibition and penalty system works, and what to have in place before the next encounter so the answer to the question "roadside check, what do they check?" is a list you have already reviewed and not a surprise.

It is written for van operators, small fleet owners, and HGV operators in the UK. The headline rules apply across the board; the rules that differ for vans under 3.5 tonnes are flagged where they apply.

Who DVSA stops, and where they stop them

DVSA conducts roadside inspections on commercial vehicles using a national network of fixed and mobile encounter sites: motorway service areas, ATFs (Authorised Testing Facilities), weighbridges, laybys on major A-roads, and dedicated checkpoints near ports. Stops are intelligence-led, not random. Most stops happen in daylight on weekdays, but DVSA also runs targeted nightshift and weekend operations on routes flagged for fatigue or non-compliance.

You are far more likely to be pulled in if any of the following is true: your operator carries a red or amber OCRS rating; your vehicle is foreign-registered (the prohibition rate for non-GB HGVs runs roughly double the GB rate); the vehicle has a recent prohibition history; ANPR flags an out-of-date MOT, no insurance on file, or a known reportable defect; or the encounter site is running a themed operation (load security, brakes, drivers' hours).

DVSA examiners can stop you under section 67 of the Road Traffic Act 1988, but they cannot pull you over while you are driving; that requires a uniformed police officer travelling with the team. In practice, the police signal you off the carriageway and the DVSA examiner takes the inspection from there.

What happens in the first two minutes

When you pull in, the examiner does three things in quick succession: reads your number plate to confirm what their ANPR system has already flagged, asks for your driving licence and Driver CPC card (HGV/PSV), and asks the operator and journey questions ("Who do you work for? Where have you come from? Where are you going?"). These first two minutes set the tone of the inspection. Polite, prompt, accurate answers shorten the encounter.

You are required to stop and to provide your driving licence on demand under sections 163 and 164 of the Road Traffic Act 1988. You are also required to make tachograph data available on request for HGVs and PSVs in scope. You are not required to discuss anything beyond the basic identification, journey, and operator questions; the examiner is not the audience for excuses.

What officers check on the vehicle

The vehicle inspection covers the same systems as an MOT but through the lens of "is this currently safe to use on the road?" The examiner walks the vehicle, focuses on the things that fail most often, and only goes deeper if something looks wrong. The DVSA's published "Categorisation of Vehicle Defects" sets the boundary between an advisory, a delayed prohibition, and an immediate prohibition for every defect type.

In practice, the items checked first and hardest are:

• Brakes. Pad and disc condition where visible, brake line condition, ABS warning status, and (where infrastructure allows) a roller brake test. Defective brakes on an HGV typically draw an immediate prohibition.
• Tyres. Tread depth (1.6mm minimum on cars and most vans; 1mm minimum on HGV trailers and LGVs above 3.5 tonnes), sidewall damage, mismatched sizes on the same axle, and pressure where it is obviously low. A bald or cut tyre is an immediate prohibition.
• Lights and reflectors. All obligatory lamps working: headlights (dip and main), front and rear sidelights, indicators, hazards, brake lights, fog, reverse, registration plate, and reflectors. A failed lamp is a delayed prohibition; multiple failed lamps after dark is immediate.
• Steering and suspension. Free play in the wheel, leaks at the rack or power steering pump, broken or detached suspension components, ride height, and air suspension system warnings.
• Body, chassis, and security of load. Corrosion in load-bearing areas, sharp protrusions, missing or insecure body panels, and (critically) load security: straps, chains, headboards, and the load itself. Load security is the single most common cause of immediate prohibitions on flatbeds and curtainsiders.
• Fuel, oil, and AdBlue leaks. Any fresh leak under the vehicle, AdBlue tampering or emulator devices (a serious offence in its own right), and fuel cap security.
• Windscreen and mirrors. Windscreen cracks in zone A (the swept area in front of the driver), missing or cracked mirrors, missing wiper blades.
• ID plates and number plates. Number plate condition and font compliance, VIN plate present and legible, manufacturer's plate where required.

For an HGV trailer, the same list applies plus dedicated trailer items: kingpin condition, fifth wheel coupling, brake line couplings, EBS warning lamp, and trailer landing leg condition.

What officers check on the driver and documentation

The driver and documentation side of the check covers everything the vehicle cannot tell you on its own: who is at the wheel, are they qualified, are they fit to be driving, and is the journey lawful? For an HGV or coach driver, expect the examiner to ask for driving licence, Driver CPC card, digital tachograph driver card, and the tachograph chart book (or the digital download covering the previous 28 days).

Specifically, the examiner will check:

• Driving licence. Correct categories for the vehicle being driven, validity dates, and any endorsements. A van driver towing a trailer may need a B+E entitlement depending on date of test; an HGV driver needs C, C+E, or D as appropriate.
• Driver CPC card. All professional drivers of HGVs and PSVs (with limited exemptions) need a valid Driver CPC card showing 35 hours of periodic training in the last five years. Driving without one when required is a £50 fixed penalty per offence, but it can also trigger an immediate prohibition on the journey.
• Drivers' hours and tachograph. For vehicles in scope of the assimilated EU rules (most HGVs over 3.5 tonnes), the examiner will inspect tachograph data covering the current day plus the previous 28 days. They look for daily driving over 9 hours (or 10 hours twice in a week), weekly driving over 56 hours, fortnightly driving over 90 hours, missed 45-minute breaks after 4.5 hours of driving, and short daily or weekly rests.
• Insurance and MOT. Confirmed via the Motor Insurance Database and the DVLA in real time. No valid insurance is an immediate prohibition and a referral to the police; an expired MOT for a vehicle in use is the same.
• Operator licence (HGV/PSV) or trade plate validity (where used). Cross-checked against the Office of the Traffic Commissioner system. An HGV operating outside the conditions of its O-licence (wrong vehicle, wrong base, unauthorised use) is a serious matter that goes straight to the relevant Traffic Commissioner.
• Daily walkaround check evidence. Asked for verbally and increasingly demanded as a printed sheet or app screen. No walkaround evidence is the trigger for an "S" marker on any subsequent prohibition (see the prohibition section below).

For a van under 3.5 tonnes used commercially, the documentation check is shorter (no Driver CPC, no tachograph for purely domestic work) but the driving licence, insurance, MOT, and walkaround evidence are all still in scope.

How the prohibition system works (immediate, delayed, and the "S" marker)

When the examiner finds a defect serious enough to act on, they issue a prohibition notice on a PG9 form. There are two severity levels and one critical add-on. An immediate prohibition stops the vehicle being moved from the encounter site (other than to a place of safe repair under specific conditions) until the defect is fixed and a clearance check is passed. A delayed prohibition lets the vehicle continue the journey but the defect must be fixed within the time stated on the notice (usually up to 10 days).

The add-on is the "S" marker. An "S" appears on the prohibition if the examiner judges the defect should have been picked up either at the last preventive maintenance inspection or at the driver's daily walkaround check. The "S" marker matters enormously because it goes against the operator, not just the vehicle, on the OCRS database, and Traffic Commissioner case law treats "S"-marked prohibitions as evidence of systemic compliance failure, not bad luck.

What this means in practice:

• Immediate, no S. Vehicle stays. Operator's OCRS takes a hit. Vehicle is fixed and re-presented for a clearance test before being released.
• Immediate, with S. Vehicle is usually immobilised on the spot. Operator's OCRS takes a much heavier hit. Likely referral to the Traffic Commissioner if the operator has an O-licence.
• Delayed, no S. Vehicle continues. Repair must be completed and the vehicle re-presented for clearance within the stated period; non-compliance escalates the prohibition to immediate retrospectively.
• Delayed, with S. Same as delayed but with the operator-side consequences of the "S".

The single best defence against an "S" marker is a real, dated, signed walkaround check sheet for that morning showing either no defect (and a credible explanation of how the defect arose between the check and the stop) or the defect already raised and being managed. A blank book or "we do them but we don't write them down" is the worst possible answer to the question "Show me your walkaround check."

Graduated fixed penalties: how the on-the-spot fines actually work

Graduated fixed penalties (GFPs) are on-the-spot fines DVSA examiners can issue for a defined list of offences, primarily drivers' hours, tachograph misuse, overloading, and certain construction and use offences. The amounts are graduated by severity: most offences sit at £50, £100, or £200, with a £300 band for the most serious. A driver can receive up to five GFPs per stop, capping the worst-case roadside fine at £1,500.

The process is fast and definite: the examiner records the offence, issues the penalty, and (for a UK-resident driver) sends the paperwork through DVSA's roadside fine portal so it can be paid online within 28 days. For a non-UK-resident driver, the fine becomes a financial deposit that must be paid at the roadside before the vehicle is released; cash or card are both accepted at most encounter sites.

GFPs do not carry licence points by themselves, but the underlying offence (e.g. defective brakes drawing a separate court summons) can. A GFP is also recorded against the operator on the OCRS, so a single £200 fine is not just £200; it is also worse roadside-pull odds for the next 36 months.

Drivers' hours offences caught from tachograph history can include offences from the previous 28 days, not only the day of the stop. That is the legal change worth taking seriously: a missed break three weeks ago is still a fine today.

OCRS: how DVSA decides who gets pulled in

The Operator Compliance Risk Score is DVSA's automated risk-scoring system for operators with a vehicle operator licence. It scores you on roadworthiness (annual test results, roadside test results, prohibitions issued) and on traffic compliance (drivers' hours infringements, weighbridge results, certain prosecutions) over a rolling three-year window. The output is a traffic-light banding that drives almost every roadside encounter decision.

The bandings:

• Green. Strongest compliance. ANPR-flagged green operators are usually waved past unless an immediate visible defect is present.
• Amber. Moderate compliance. Pulled in selectively, often as part of themed operations.
• Red. Poor compliance. Pulled in routinely; high inspection rate at every encounter site.
• Grey. Insufficient data (typically a brand-new operator under 24 months old). Treated cautiously, often inspected to gather data.
• Blue. No data at all. Same caveat as grey.

The score moves both ways: every clean inspection is recorded as a positive event; every prohibition or fixed penalty is a negative one. Operators with sustained green ratings see far fewer roadside checks year on year, and that drop in lost-day cost is the main commercial reason to take OCRS seriously beyond the safety case.

For van operators under 3.5 tonnes, OCRS does not apply (because no O-licence is held). Targeting for vans under 3.5 tonnes is driven instead by ANPR-led intelligence on insurance, MOT, road tax, and known reportable history.

Vans under 3.5 tonnes: the lighter regime, the same exposure

For a van under 3.5 tonnes used commercially, the DVSA roadside check is shorter than the HGV equivalent but the legal exposure is similar in many of the same areas. Drivers' hours under the assimilated EU rules generally do not apply (the GB Domestic Rules apply instead, and even those exempt many trade journeys); Driver CPC is not required; tachograph fitment is not required. What is required is an in-date MOT, valid insurance, valid road tax, a roadworthy vehicle, and (for vehicles used in the course of business, including most trade vans) a documented daily walkaround check.

The walkaround requirement for vans is the rule that catches most operators out. The legal basis sits in the Road Traffic Act 1988 (sections 40A, 41A, 42, and the related regulations) and DVSA guidance is explicit: if you use a vehicle for work, you must check it before use and keep records. We covered this in detail in Do Van Drivers Need a Daily Walkaround Check? UK Legal Requirements Explained; the short version is that the same "S" marker logic applies if a defect should have been found and was not.

A van pulled in with a bald tyre, a crack across the windscreen, and an oily underside, presented by a driver who cannot produce a walkaround sheet, is exactly the encounter DVSA wants to record. The prohibition will be immediate; the operator will be expected to explain why the vehicle was being used; and the next ANPR encounter will not be friendlier.

How to prepare: the 10-item operator checklist

Most of the work to pass a roadside check is done weeks before the stop happens, not in the moment. The following 10 items are the difference between a five-minute encounter that ends with a wave-on and a 45-minute inspection that ends with a PG9.

1. Run a real daily walkaround check, every day, on every vehicle. Dated, named, signed, with each item ticked or marked as defective. Keep records for 15 months (the DVSA standard) at a minimum.
2. Photograph any defect at the moment it is raised. A timestamped photo on the walkaround app is the strongest single piece of evidence that the defect existed before the journey, was raised, and is being actioned.
3. Have a working defect reporting and rectification loop. A defect raised but not fixed within a reasonable time is worse than no record at all; it shows the operator knew and chose to drive.
4. Keep MOT, road tax, and insurance live without gaps. ANPR cross-checks all three in seconds. A 24-hour lapse triggers a stop almost every time.
5. Audit your OCRS quarterly. Read your own dashboard via the DVSA Manage your Vehicle Compliance Information system. Flag any negative event you do not recognise and dispute it within the appeal window.
6. Brief drivers on what to do if stopped. Pull in safely, hand over licence and CPC card promptly, answer the journey questions accurately, and call the office before signing any paperwork they do not understand.
7. Carry the documentation in the cab. A folder or app with copies of insurance, MOT certificate, motor insurance database confirmation, walkaround sheets for the last 15 months (or a way to retrieve them on the spot), and the operator's compliance contact number.
8. For HGVs, manage tachograph downloads on schedule. Driver card every 28 days, vehicle unit every 90 days. Missed downloads are a fixed-penalty offence and a strong "we are not on top of compliance" signal.
9. Pre-empt load security on every job. Strap, chock, and headboard checks at every loading point, recorded on the walkaround at the next opportunity. Loose load is the single most common immediate prohibition on flatbeds and curtainsiders.
10. Run a quarterly mock roadside check on each vehicle. A 20-minute walk-around by a fleet manager or a third-party engineer, scoring each item against the DVSA categorisation document. Most weak points reveal themselves before DVSA finds them.

A digital fleet management system that pulls walkaround sheets, defect logs, MOT and tax dates, and tachograph downloads into one place removes most of the paperwork friction in the list above. See Autodue's fleet management features and the dedicated walkaround check tools for how the operator-side records are produced and stored.

What to do if the examiner finds something

If the examiner raises a defect or an offence at the roadside, the calm response saves you the most money. Do not argue the categorisation on the spot; the examiner has the published defect categorisation document in their hand and you do not. Ask for the prohibition notice in writing, take a photograph of it, and confirm the deadline and the clearance test arrangements. For a graduated fixed penalty, confirm the offence band and the payment route before signing. Pay any non-resident financial deposit promptly so the vehicle can be released.

On returning to base, log the encounter (driver, vehicle, time, examiner ID number, defect, action) in your fleet records. Within 48 hours, schedule the repair or rectification, complete the clearance test where required, and (if the prohibition is "S" marked) start a written internal investigation: how did the defect get past the walkaround check, what training or process change is needed, and is there a pattern across other vehicles in the fleet? Operators that document this loop carefully have far better outcomes at any subsequent Traffic Commissioner conduct hearing than operators that file the PG9 and move on.

If the prohibition or penalty is wrong, there is a formal appeals process for both prohibition notices (to a chief vehicle examiner, then by judicial review) and graduated fixed penalties (court hearing in lieu of paying the fixed sum). Use these routes when you have evidence the examiner's call was wrong; do not use them as a delay tactic, because the OCRS impact is the same either way until the appeal is decided.

The bottom line

A DVSA roadside inspection is not a roulette wheel. It is an intelligence-led check driven by ANPR and OCRS, focused on a finite list of vehicle and driver items, with outcomes that escalate from a wave-on to a £1,500 fine and an immobilised vehicle. The operators who pass cleanly do the same five things: real daily walkaround checks with photographs, gap-free MOT/tax/insurance, a documented defect-and-fix loop, regular tachograph and licence checks, and an OCRS that they look at on a calendar reminder, not after a bad encounter.

If your fleet is still running paper walkaround sheets in a glovebox or a half-completed spreadsheet on a depot laptop, the next encounter will tell you so. Move the records to a digital system this week, photograph every defect from the next walkaround onwards, and put a six-monthly compliance review in your calendar. The DVSA stop after that one is the one that ends with a wave-on.

Stop a roadside stop ending in a PG9. Autodue gives every driver a digital walkaround check with photo evidence, defect tracking, and tamper-proof timestamps, all surfaced in a fleet dashboard your compliance manager can audit in minutes. First van free.

See walkaround checks on Autodue | See fleet management | Download Autodue free on the App Store | Get it on Google Play

Sources: GOV.UK: Roadside checks for HGV, van, bus or coach drivers · GOV.UK: DVSA roadside checks: fines and financial deposits · GOV.UK: Operator Compliance Risk Score (OCRS) · GOV.UK: Categorisation of vehicle defects (December 2024) · GOV.UK: Drivers' hours and tachographs: goods vehicles · GOV.UK: DVSA enforcement sanctions policy