The Road Traffic Act 1988 is the main statute governing how vehicles are driven, maintained, and policed in England, Scotland, and Wales. It sets out the criminal offences a driver can commit on the road, the licensing and insurance duties every motorist owes, and the powers the police use to enforce both. Penalties range from fixed-penalty fines and points on your licence through to disqualification and, for the most serious offences, life imprisonment. Northern Ireland has its own separate legislation.
What the Act does, in practical terms, is give every road offence a legal definition, a maximum sentence, and (where relevant) a minimum ban. The sections below walk through the parts of it drivers are most likely to encounter.
Dangerous, Careless, and Fatal Driving Offences
The Act sorts bad driving into tiers. Section 3 covers careless or inconsiderate driving: driving without due care and attention, or without reasonable consideration for other road users.1Legislation.gov.uk. Road Traffic Act 1988 – Section 3 The threshold is that the driving falls below the standard of a competent and careful driver. Being distracted by the radio and running a red light is a classic example. Hogging the middle lane or refusing to let traffic merge can qualify as inconsiderate even where nobody was put in immediate danger.
Section 2 raises the bar to dangerous driving.2legislation.gov.uk. Road Traffic Act 1988 – Section 2 The test, set out in Section 2A, has two parts. The driving must fall far below what you would expect of a competent and careful driver, and it must be obvious to such a driver that driving that way would create a danger of injury or serious property damage.3legislation.gov.uk. Road Traffic Act 1988 – Section 2A A momentary lapse of concentration probably does not clear that bar. Aggressive overtaking on a blind bend almost certainly does.
When a death results, the Act gets much tougher. Section 1 covers causing death by dangerous driving, and Section 3A covers causing death by careless driving while unfit through drink or drugs, over the alcohol limit, over a drug limit, or (without reasonable excuse) refusing to provide a specimen after a fatal collision.4legislation.gov.uk. Road Traffic Act 1988 – Section 15legislation.gov.uk. Road Traffic Act 1988 – Section 3A Since 2022, both offences carry a maximum of life imprisonment, up from the previous 14-year cap.6legislation.gov.uk. Police, Crime, Sentencing and Courts Act 2022 – Section 86
Drink and Drug Driving Limits
The Act uses two parallel offences for alcohol. Section 4 makes it illegal to drive, attempt to drive, or be in charge of a vehicle while unfit through drink or drugs; proof usually rests on police observations such as slurred speech or poor coordination, sometimes supported by medical evidence.7Legislation.gov.uk. Road Traffic Act 1988 – Section 4 Section 5 sets a hard numerical limit and makes it an offence to exceed it, whether or not you appear impaired.8Legislation.gov.uk. Road Traffic Act 1988 – Section 5
Under Section 11, the prescribed alcohol limits in England and Wales are:9legislation.gov.uk. Road Traffic Act 1988 – Section 11
- 35 microgrammes of alcohol per 100 millilitres of breath
- 80 milligrammes per 100 millilitres of blood
- 107 milligrammes per 100 millilitres of urine
Scotland cut its limits in December 2014. The Scottish figures are 22 microgrammes per 100 millilitres of breath and 50 milligrammes per 100 millilitres of blood. If you drive across the border, work to the lower numbers.
Section 5A, added in 2013, creates a drug-driving offence that mirrors Section 5.10legislation.gov.uk. Road Traffic Act 1988 – Section 5A The prosecution does not need to show you were actually impaired, only that a blood or urine sample exceeded the specified limit for a controlled drug. The limits for illegal drugs are set at effectively zero-tolerance levels. There is a statutory defence for prescribed medication taken in accordance with the prescriber’s directions and the manufacturer’s instructions, but it falls away if you ignored advice about how long to wait before driving. Reading the patient leaflet is a legal safeguard, not just a sensible one.
What You Must Do After a Collision
Section 170 catches many drivers by surprise. If a collision involving your vehicle causes injury to another person, damage to another vehicle, damage to certain animals, or damage to property on or near the road, you must stop.11legislation.gov.uk. Road Traffic Act 1988 – Section 170 If anyone with reasonable grounds asks, you must give your name, address, the vehicle owner’s name and address, and the registration number.
If you do not exchange those details at the scene for any reason, you must report the collision to a constable or at a police station as soon as reasonably practicable, and in any event within 24 hours. Where the collision caused personal injury, you must also produce your insurance certificate at the scene to a constable or anyone with reasonable grounds to ask. If you cannot, you must report the accident and produce the certificate at a police station within seven days. Failing to stop and failing to report are separate offences, each carrying penalty points and potential disqualification.
Licence, Insurance, and MOT
Three documents sit at the core of lawful driving.
Section 87 makes it an offence to drive on a road without a licence authorising you to drive that class of vehicle, and equally an offence to cause or permit someone else to do so.12legislation.gov.uk. Road Traffic Act 1988 – Section 87 A car licence does not cover motorcycles or heavy goods vehicles. Your actual skill is irrelevant; the offence is the missing authorisation. Section 88 allows limited continued driving while the DVLA processes a renewal application.13House of Commons Library. Road Traffic Offences and Licensing FAQs
Section 143 requires at least third-party insurance for anyone using a motor vehicle on a road or public place.14legislation.gov.uk. Road Traffic Act 1988 – Section 143 It is a strict liability offence. It does not matter whether you believed you were insured or someone told you the vehicle was covered. The fixed penalty is £300 and six penalty points, but in court the fine is unlimited and disqualification is possible. Uninsured vehicles can also be seized on the spot.
Section 45 sets the framework for the MOT: prescribed categories of vehicles must be examined to confirm they meet construction and condition standards and that their use would not endanger anyone.15legislation.gov.uk. Road Traffic Act 1988 – Section 45 Most cars need their first test three years after registration and annually after that. Using a vehicle on a road without a valid certificate (where one is required) is a summary offence.
Police Powers at the Roadside
Section 163 gives any constable in uniform, or a traffic officer, the power to require a driver (or cyclist) to stop.16Legislation.gov.uk. Road Traffic Act 1988 – Section 163 No reason has to be given, and failing to stop is itself a summary offence.
Sections 164 and 165 let an officer require you to produce your driving licence, insurance certificate, and MOT certificate, and to give your name and address and the owner’s name and address.17legislation.gov.uk. Road Traffic Act 1988 – Section 16418legislation.gov.uk. Road Traffic Act 1988 – Section 165 If you do not have the documents on you, you will not be convicted solely for that, provided you produce them at a police station within seven days. Officers typically issue a form (an HORT/1) specifying what to produce and where.
Section 6 lets officers require a preliminary breath test where they reasonably suspect alcohol or a moving traffic offence, or where a driver has been involved in a collision. The Act also provides for preliminary impairment and drug tests. Failing to provide a specimen without reasonable excuse is a criminal offence in its own right.
Seatbelts, Helmets, and Mobile Phones
Section 14 underpins the seatbelt regulations that apply to drivers and passengers in most circumstances.19legislation.gov.uk. Road Traffic Act 1988 – Section 14 The driver is personally responsible for ensuring children under 14 are properly restrained. A front-seat adult passenger who refuses to belt up is personally liable; the driver is not prosecuted for that passenger’s choice. Limited exemptions exist for certain medical conditions and for drivers making frequent local deliveries.
Section 16 requires motorcyclists to wear protective headgear meeting prescribed standards.20legislation.gov.uk. Road Traffic Act 1988 – Section 16 Sidecar passengers are exempt, as are Sikhs wearing a turban. Where the rider is under 16, the person who caused or permitted the ride can also be prosecuted.
Section 41D targets handheld phone use at the wheel.21legislation.gov.uk. Road Traffic Act 1988 – Section 41D Regulations made under it were broadened in 2022 to cover standalone interactive devices and a wider range of activities, including scrolling through music playlists, taking photos, and playing games. The offence applies both while driving and while stationary in traffic with the engine running. Hands-free use is not caught by Section 41D, though a visibly distracted hands-free user can still be prosecuted for careless driving under Section 3. The fixed penalty is £200 and six points. For a new driver still within two years of passing their test, six points means automatic revocation of the licence.
Penalty Points, Disqualification, and the NIP
Most Road Traffic Act offences carry penalty points endorsed on your licence under the Road Traffic Offenders Act 1988. Points stay on the licence for a period set by the offence, typically three to eleven years depending on severity. Accumulating 12 or more points within three years triggers “totting up,” and the court must disqualify for a minimum of six months. Repeat totting-up disqualifications within three years bring progressively longer bans.
Some offences carry mandatory disqualification regardless of your existing points. A first drink-drive conviction brings a minimum 12-month ban. A second conviction within ten years raises the minimum to three years. Where both involved causing death by careless driving while impaired, the minimum is six years.22legislation.gov.uk. Road Traffic Offenders Act 1988 – Section 34 These are floors; courts routinely impose longer bans depending on how far over the limit the driver was.
One procedural safeguard is worth knowing. For certain offences, including dangerous driving, careless driving, and speeding, no conviction can follow unless the driver received a warning that prosecution was being considered.23The Crown Prosecution Service. Road Traffic – Summary Offences This Notice of Intended Prosecution (NIP) must generally be served within 14 days of the offence. In practice, the requirement is met by a verbal warning at the roadside, by a written notice sent to the registered keeper, or by the summons itself. A late NIP, or one sent to the wrong address, can be a complete defence.