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Driving offence

Drug driving sentence calculator

Choose the factors in the court guideline and enter weekly net income where it applies.

What does the court guideline say?

The result shows the guideline category, starting point and range. It is not a prediction of the court's decision.

Category 1

Sentencing Council guideline

Category
Category 1
Starting point
12 weeks custody
Sentence range
High level community order to 26 weeks custody
Disqualification
29 to 36 months
Penalty points
None in the ordinary guideline because disqualification is obligatory
Fine percentage
Not applicable to this starting sentence
Calculation details

Assumptions

  • Fine amounts shown are calculated from the weekly net income entered and the published fine band percentages.

What is not included

  • The court considers aggravating and mitigating factors, previous convictions, a guilty plea and the offender's means.
  • Any statutory maximum shown on the page caps the cash fine. The maximum can depend on the vehicle class.
  • This is the guideline, not a prediction of the sentence a court will impose.

Summary: The guideline combines culpability and harm. It says a drug level cannot be directly connected to harm, so the calculator does not ask for one. This is an adult magistrates' court guideline for England and Wales.

Checked on .

Guideline categories and sentence ranges

Driving or attempting to drive with a specified drug above the specified limit, effective 1 July 2023
CategoryStarting pointSentence rangeDisqualificationPoints
Category 112 weeks custodyHigh level community order to 26 weeks custody29 to 36 monthsNone in the ordinary guideline because disqualification is obligatory
Category 2Medium level community orderLow level to high level community order17 to 28 monthsNone in the ordinary guideline because disqualification is obligatory
Category 3Band C fineBand B fine to low level community order12 to 16 monthsNone in the ordinary guideline because disqualification is obligatory

Which factors does the guideline use?

  • Higher culpability includes a goods vehicle or passenger service vehicle, commercial purpose, or another specified drug or alcohol in the body.
  • Greater harm includes obvious impairment or an unacceptable standard of driving.
  • A second relevant conviction within 10 years changes the minimum disqualification ranges.

Why is this not a sentence prediction?

  • The court decides the sentence. This calculator reports the guideline and is not a prediction.
  • The ordinary guideline requires disqualification for at least 12 months. A second relevant offence carries a minimum 3 year disqualification.

What happens after a drug driving arrest?

There is no published fixed penalty for drug driving. The case goes to court. The Sentencing Council guideline for driving or attempting to drive with a specified drug above the specified limit has been in force since 1 July 2023. It does not ask for a drug level, because the guideline says the level cannot be directly connected to the harm caused. The calculator on this page therefore has no reading box. It asks for culpability, harm, and whether you have a relevant conviction in the last 10 years.

Police can use a roadside drug screening test for some specified drugs, then take an evidential blood specimen. Specified-limit drug driving is a different offence from driving while unfit through drugs. Unfit is about impairment. Specified-limit is about a blood concentration above the legal threshold for that drug. This page is the specified-limit guideline. Do not treat a cannabis limit case as if it were an unfit case, or the other way around.

The ordinary guideline requires disqualification for at least 12 months. A second relevant offence carries a minimum 3 year disqualification. That is the same shape as drink driving, without drink driving's reading table. Category 1, the most serious combination of culpability and harm, starts at 12 weeks' custody with a ban of 29 to 36 months. Category 3, the least serious, starts at a Band C fine with a ban of 12 to 16 months.

  1. A roadside screening test, a collision, or driving that looks impaired leads to an evidential blood test for specified drugs.
  2. If a specified drug is above the specified limit, you are charged. There is no fixed penalty offer on the published table.
  3. At court the bench places the case in Category 1, 2 or 3 from culpability and harm, not from the microgrammes in the blood.
  4. The court must disqualify for at least 12 months on a first relevant offence, then sets custody, a community order or a fine inside the published range.
  5. A second relevant conviction in 10 years swaps the ban ranges for the longer published repeats of 36 to 60, 36 to 52 or 36 to 40 months.

How do culpability and harm pick the drug driving category?

Higher culpability in this guideline includes a goods vehicle or passenger service vehicle, driving for a commercial purpose, or having another specified drug or alcohol in the body. Lesser culpability is the residual category. Greater harm includes obvious impairment or an unacceptable standard of driving. Lesser harm is the residual category. The four combinations collapse to three categories: higher plus greater is Category 1, lower plus lesser is Category 3, and the mixed pairs are Category 2.

Category 3 starts at a Band C fine. On £500 a week net that starting point is £750, with a published range from a Band B fine to a low level community order and a ban of 12 to 16 months. Category 2 starts at a medium level community order, with a ban of 17 to 28 months. Category 1 starts at 12 weeks' custody, with a range from a high level community order to 26 weeks' custody and a ban of 29 to 36 months.

A van, a taxi, a bus or a delivery round is how many people move from Category 3 to Category 2 or 1 without a collision. So is a second specified drug, or alcohol as well as the drug. The guideline lists those as culpability factors. They are not optional colour. If they are present, the higher row is the published starting point.

Drug driving categories, first relevant offence, England and Wales
CategoryHow you get thereStarting pointBan
1Higher culpability and greater harm12 weeks' custody29 to 36 months
2The mixed combinationsMedium level community order17 to 28 months
3Lower culpability and lesser harmBand C fine12 to 16 months

Sentencing Council, Driving or attempting to drive with a specified drug above the specified limit, in force 1 July 2023, checked 10 September 2026.

Example

A first specified-limit cannabis case, no collision, £500 a week net

Offence
Specified drug above the specified limit
Culpability
Lower: private car, no second drug or alcohol listed
Harm
Lesser: no obvious impairment recorded
Relevant weekly income
£500
Relevant conviction in 10 years
No
  1. Lower culpability and lesser harm select Category 3.
  2. Category 3 starts at a Band C fine, £750 on £500 a week.
  3. The published range is a Band B fine to a low level community order.
  4. The published ban is 12 to 16 months. The court must disqualify.
  5. If a delivery van or a second specified drug had been present, culpability would have been higher and the case would have left Category 3.

Category 3: Band C starting fine £750 on £500 a week, obligatory ban 12 to 16 months. The blood level is not an input on this guideline.

Does a prescribed medicine give me a defence?

Specified-limit drug driving is about a concentration in blood, not about whether you 'felt fine'. Some specified drugs are also medicines. Whether a medical defence applies is a legal question on the facts of the prescription, the advice you were given, and the way you drove. This page does not invent a medical defence test, because the guideline behind the calculator does not publish one as an input. If you take a specified medicine, the honest step is to take advice from the prescriber about driving and to take legal advice if you are charged.

Unfit through drugs remains available as a separate charge where impairment is the point. A driver can face one or the other, and in some investigations both are considered. Do not assume that a prescription turns a specified-limit charge into a warning. Do not assume that a small reading is Category 3 either. Category is culpability and harm, not nanogrammes.

Foreign prescriptions, veterinary products, and cannabis products bought legally abroad are not given a published carve-out in this guideline. The specified limit is a UK criminal limit on a UK road. If the blood result is over the specified threshold, the charge is the charge.

How long does drug driving stay on a licence?

DG10, driving or attempting to drive with a drug level above the specified limit, stays on the driving record for 11 years from conviction and is valid for the first 10. DR80, driving while unfit through drugs, sits on the same 11 year clock. That is the drink and drugs family, not the 4 year speeding family. Because the ordinary guideline requires a ban, points are not the ordinary disposal.

Insurance is likely to rise considerably after a serious driving conviction. That is the Highway Code's published wording. No official percentage exists by code. An employer who needs you to drive will see the ban immediately and the code for years after. A new driver who is banned still has to retake the test route back onto a full licence after the disqualification, and the new driver revocation rule is a separate trap on any endorsable points they already hold.

There is no drink-drive rehabilitation course published for specified-limit drug driving on the GOV.UK drink-drive course page, which is written for drink-drive offences. Do not expect a quarter off a drug driving ban by booking a drink-drive course. If a court has a different statutory power in a particular case, that will be on the order. This page only reports what the linked sources publish.

Does this drug driving guideline apply in Scotland?

No. It is an England and Wales Sentencing Council guideline. Scottish courts and Northern Ireland courts sentence specified-limit drug driving under their own procedure. The offence of driving with a specified drug above a specified limit still exists as UK road traffic law, but the Category 1 to 3 starting points on this page are not a Scottish or Northern Ireland tariff.

DVLA endorsement codes remain the same on a Great Britain licence. A Scottish conviction can still put DG10 on a GB licence for 11 years from conviction. Northern Ireland licensing through DVA is a different office. A ban still stops you driving across the United Kingdom while it is in force.

This site does not publish specified blood limits for each drug on this page, because the calculator's own guideline says the level is not the harm input. The GOV.UK drug driving law page is the place that lists the specified drugs and limits. Use that list, not a remembered figure, if you need the threshold for a named drug.

What if I was in a van, a taxi, or I also had a drink?

A goods vehicle, a passenger service vehicle, or driving for a commercial purpose is higher culpability in this guideline. So is another specified drug or alcohol in the body. A dual-qualified case, drink and a specified drug, is how Category 3 disappears. The drink driving guideline may also be in play as a separate offence. The court can face two charges. This calculator only reports the drug driving guideline you selected.

Hire cars and company cars do not lower the category. The driver is still the driver. An employer who supplied the van can have their own problems if they allowed an impaired driver out, but that is not this guideline's owner-company table. This guideline is about the driver.

New drivers receive the same obligatory ban. There is no 3 point fixed penalty to 'take the hit'. After the ban, the licence position is the same as any other obligatory disqualification: apply again, and do not drive on the old photocard.

  • No published fixed penalty. Court only.
  • Category comes from culpability and harm, not from the blood figure.
  • Commercial vehicles and a second drug or alcohol push culpability up.
  • The ordinary ban is at least 12 months, or 3 years on a second relevant offence in 10 years.

What do people get wrong about drug driving sentences?

The leading myth is that a 'low' cannabis reading is like a Band A speeding fine. Specified-limit drug driving has no fixed penalty and an obligatory ban. The second myth is that the blood number picks the category. The guideline says it cannot be directly connected to harm. The third is that a prescription is an automatic defence. It can be relevant. It is not a published 'not guilty' button on this page.

People also mix specified-limit with unfit, mix this guideline with drink driving's reading table, and mix England and Wales starting points with Scottish courts. Another practical error is booking a drink-drive rehabilitation course for a drug driving ban because a friend did that after a drink case. The GOV.UK course page is written for drink-drive offences.

Ignoring the blood appointment or the summons makes the case worse, not better. Refusing a specimen is a separate offence with its own guideline. If you have a genuine medical reason you cannot provide a type of specimen, say so at the time and get it recorded. Silence is not a medical reason.

Common questions

Does the drug level decide the category?
No. The guideline says the level cannot be directly connected to the harm caused. Category 1, 2 or 3 comes from culpability and harm. Higher culpability includes a goods or passenger service vehicle, commercial purpose, or another specified drug or alcohol in the body. Greater harm is impairment or a poor standard of driving. A small reading with a delivery van and a collision is not Category 3 just because the number looks small.
Is there a fixed penalty for drug driving?
No fixed penalty is published for this offence. It is dealt with by a court. The ordinary guideline requires disqualification for at least 12 months, and a second relevant offence carries a minimum 3 year disqualification. Category 3 can start at a Band C fine. Categories 2 and 1 start at a community order or at custody. Anyone who describes drug driving as '3 points in the post' is describing a different offence.
How much is a Category 3 drug driving fine on £500 a week?
Category 3 starts at a Band C fine. Band C is 150 per cent of relevant weekly income, so £750 on £500 a week. The published range is a Band B fine to a low level community order, and the ban is 12 to 16 months. Those pounds are derived from the percentage band. Categories 2 and 1 do not start at a fine, so there is no weekly income starting figure to quote for them. The court still decides inside the range.
Is a driving ban mandatory for specified-limit drug driving?
Yes, on the ordinary guideline. A first relevant offence brings a disqualification of at least 12 months. The published ranges are 12 to 16 months in Category 3, 17 to 28 months in Category 2, and 29 to 36 months in Category 1. A second relevant conviction in 10 years lifts the minimum to 3 years and uses the longer published repeat ranges. Points are not the ordinary substitute because the ban is obligatory.
Does a prescription protect me from a drug driving charge?
Not automatically. Specified-limit drug driving is about a concentration in blood. Some specified drugs are medicines. A medical defence, if it applies, depends on the prescription, the advice you were given, and the facts of the driving. This guideline does not publish a medical defence as a calculator input, so this page does not pretend it is a tick box. Take advice from the prescriber about driving, and take legal advice if you are charged. Unfit through drugs is a separate offence.
How long does DG10 stay on my licence?
11 years from the date of conviction, and it is valid for the first 10 of those years. That is the drink and drugs family of endorsements, not the 4 year family used for most speeding codes. Insurers and employers can still see it. Answer questions about unspent convictions. Because the ordinary guideline requires a ban, the court does not treat points as the ordinary disposal, but the code still sits on the record.
Does this guideline apply in Scotland or Northern Ireland?
No. It is an adult magistrates' court guideline for England and Wales. Scottish and Northern Ireland courts use their own procedure. The specified-limit offence still exists, and a Great Britain licence can still carry DG10. A ban still stops you driving while it is in force. This calculator will not invent a Scottish or Northern Ireland starting fine. Use the local court process, not these Category 1 to 3 rows, if the offence was not in England or Wales.
Can I take a rehabilitation course to shorten a drug driving ban?
The GOV.UK drink-drive rehabilitation course page is written for drink-drive offences where the ban is 12 months or more. It is not published as a drug driving course on that page. Do not assume a quarter off a specified-limit drug driving ban by booking the drink-drive course. If a court order in your case includes a different statutory reduction, that will be on the order. This page only reports the linked sources.

Related pages

Sources

Guideline and penalty figures were checked against the linked official pages on 10 September 2026.