Nova Scotia DUI Laws: Roadside Suspensions, Impoundment and Ignition Interlock

In Nova Scotia, a police officer can suspend your licence at the roadside the moment you register a "Warn" (0.05 to 0.079) or "Fail" (0.08 or higher) breath result, refuse a demand, or are found impaired, and that suspension runs on top of, not instead of, any Criminal Code charge.

Information last verified on 2026-08-15. This article has not yet been reviewed by a licensed lawyer.

Roadside (Administrative) Suspensions

Nova Scotia's Motor Vehicle Act gives police several separate suspension powers that all take effect immediately, before any court appearance, and independently of whether the driver is ultimately charged or convicted criminally.

Warn range: 0.05 to 0.079. Under s.279C, a breath sample reading in the "Warn" range, defined as 50 to 79 milligrams of alcohol per 100 millilitres of blood (0.05 to 0.079), leads to immediate surrender of the licence and a suspension of 7 days for a first occurrence within 10 years, 15 days for a second, and 30 days for a third or subsequent. The screening device is barred by statute from registering a Warn result below 50 mg, and a driver can demand a second, confirmatory analysis under s.279C(6).

Fail range, refusal, or impairment: flat 90 days. Under s.279A, a reading of 0.08 or higher, a refusal of a breath or blood demand, or a finding of impairment by alcohol or drugs produces an immediate 90-day suspension. Unlike the Warn tier, this suspension does not escalate by prior history: it is a flat 90 days whether it is a first or repeat occurrence, and it stacks with, rather than substitutes for, any Criminal Code charge that follows.

Drug-suspected impairment: the same 7/15/30-day ladder. Section 279K applies the identical escalating suspension used for alcohol Warn readings to a driver who fails a physical coordination test rather than a breath device reading.

General unfitness: 24 hours. Section 279I gives an officer a broader, catch-all power to suspend a driver considered unfit to drive for any reason, including a medical reason, for up to 24 hours. The licence is not physically seized under this provision.

Vehicle removal at the roadside. When a licence is suspended under the Warn or drug-suspicion provisions, ss.279C(11)-(12) and 279K(11)-(12) let an officer have the vehicle towed and stored if no licensed driver is available to move it, with the suspended driver responsible for removal and storage costs before the vehicle is released. This roadside removal power is separate from the longer impoundment described next.

Vehicle Impoundment for Driving While Revoked

A separate, more severe impoundment applies to a driver caught operating a vehicle while already revoked for a Criminal Code impairment-related offence. Under s.291A, the Registrar impounds the vehicle for 90 days on a first impound order against that vehicle's owner, or 180 days if a prior impound order already exists against that owner. This mechanism targets repeat or prohibited driving on top of an existing revocation, and it is distinct from the roadside vehicle-removal power above, which applies at the moment a Warn or drug-suspicion suspension is issued.

Zero-Tolerance for Novice Drivers

Nova Scotia defines a "novice driver" under s.70C as any learner, a newly licensed driver, or a holder of a Class 1-6 licence for under two years since first being licensed. Under s.100A(1), a novice driver must have zero measurable alcohol at all, and a breach brings a flat 24-hour licence suspension under s.100B(5) rather than the 7/15/30-day escalation applied to non-novice Warn-range stops. That flat 24-hour suspension does not appear to escalate on a second or third novice violation the way the general Warn ladder does. A parallel 24-hour suspension for suspected drug impairment applies to novices under s.279L.

No separate zero-tolerance BAC provision for commercial drivers, or for adult drivers under 21 as a standalone class, was located in the sections of the Act reviewed. Do not assume either applies; if it matters to you, confirm directly with Access Nova Scotia or a lawyer rather than assuming parity with another province's rules.

Remedial Program and Ignition Interlock

Driving While Impaired (DWI) Program. Reinstatement after any alcohol- or drug-related revocation or suspension requires completing an alcohol rehabilitation program through Nova Scotia Health Addiction Services, a mandatory condition under s.67(11). No primary Nova Scotia Health or Registrar of Motor Vehicles fee schedule states the program's current dollar cost. Treat any specific figure you see elsewhere as unconfirmed and verify it directly with Addiction Services before budgeting for it.

Alcohol Interlock Program. The Registrar can require ignition interlock participation as a condition of licensing under s.280A, or as a condition of restoring a licence after a repeat impairment-related revocation under s.67(11A). The program's official User's Handbook lists these fees, stated as subject to change without notice:

Taxes are added to every fee on this schedule. The handbook also references a non-refundable application fee without stating its dollar amount, and a $39.50 figure circulates in secondary sources for that fee; it is not confirmed in the primary fee schedule, so treat it as unverified.

Minimum participation periods, per the handbook, are: optional for the remainder of the revocation on a first conviction rated low or medium risk; mandatory for at least 1 year on a first conviction rated high risk; mandatory for at least 2 years on a second conviction, or the remainder of the revocation if 2 years or more remain; mandatory for at least 3 years on a third conviction; at least 2 years for a first conviction causing death or bodily harm; and at least 5 years for a second such conviction. Eligibility to even apply for the program opens only after 3, 6, or 12 months of the underlying revocation has run, for a first, second, or third conviction respectively.

Review and Appeal Deadlines

Reviewing a 90-day Fail-range suspension is a two-step process under ss.279B-279BA, and filing for review does not pause the suspension while it is pending.

1. Registrar review (s.279B). Apply to the Registrar and pay the prescribed fee, plus an oral-hearing fee if you want a hearing. The Registrar must consider a paper application within 10 days of a complete filing, or hold a requested oral hearing within 20 days. The only issue on review is factual: whether the BAC, refusal, or impairment trigger actually occurred.
2. Appeal to the Motor Vehicle Appeal Board (s.279BA). An appeal of the Registrar's decision must be filed within 30 days of that decision. This is the highest-stakes deadline in the scheme; miss it and the Registrar's decision stands.

Warn-range suspensions under s.279C and drug-suspicion suspensions under s.279K do not appear to route through this same review-then-appeal ladder, which is keyed specifically to s.279A. Section 279N expressly bars any appeal of a suspension under s.279I, 279K, or 279L. Whether s.279C Warn-range suspensions have any review or appeal path of their own was not directly confirmed in the sections reviewed. If you are relying on a right to challenge a Warn-range suspension, confirm the current position with the Registrar of Motor Vehicles or a lawyer rather than assuming one exists.

A vehicle impounded under s.291A can only be released by order of the Motor Vehicle Appeal Board; the deadline and procedure for that specific appeal were not located in the sections of the Act reviewed for this article.

Reinstatement Steps and Fees

The general path to reinstatement is to serve out the suspension or revocation period, complete the DWI/Addiction Services program and, where required, the Alcohol Interlock Program's minimum term, apply to the Registrar in the prescribed form, and pay the fees owed. The statutory reinstatement fee under s.68(1) is $124.60, current in the May 1, 2026 consolidation of the Act, on top of any rehabilitation-program costs and, if applicable, the interlock program's own $75.00 reinstatement fee. The Registrar will not reinstate a licence until satisfied every requirement has been completed.

Post-Conviction Licence Revocation

A Criminal Code impairment conviction (under ss.320.14, 320.15, or 320.18) triggers its own, separate provincial revocation under s.67(5), on top of whatever roadside suspension already applied:

• First revocation: 1 year.
• Second revocation within 10 years: 3 years.
• Third or subsequent revocation within 10 years: indefinite.

This is confirmed directly from the current consolidated Act text, s.67(5)(ba) and s.67(6A). Nova Scotia's own Alcohol Interlock Program handbook, by contrast, describes the third-conviction outcome as a "10-year" minimum revocation period. That handbook appears to be a dated document elsewhere too (it references a service-centre note current only as of March 2012 and mixes old and new Criminal Code section numbers), and its "10-year" language conflicts directly with the statute's plain "indefinite" wording. The statute controls: a third or subsequent impaired-driving conviction in Nova Scotia carries an indefinite provincial licence revocation, not a fixed 10-year term.

Causing death or bodily harm while impaired carries longer, and in some circumstances indefinite, revocation periods under a separate, more detailed clause of s.67(5) that maps to specific Criminal Code sections. If this applies to your situation, the exact clause depends on which Criminal Code section you were convicted under, so confirm the applicable term with a lawyer rather than assuming a single figure covers every death or bodily harm conviction.

Mandatory alcohol-rehab program participation and the Registrar's discretionary power to require an interlock both attach as reinstatement conditions on top of these time-based revocations.

The Criminal Track

Nova Scotia's administrative suspension and revocation scheme sits on top of, and is legally independent of, the uniform federal Criminal Code impaired-driving offences in Part VIII.1, covering impaired operation, an "over 80" reading, refusal, and drug-concentration offences (s.320.14), the refusal offence specifically (s.320.15), and mandatory driving prohibitions (s.320.18). A criminal conviction is what triggers the provincial revocation tiers described above, but the administrative suspension and the criminal proceeding run on separate tracks, and neither substitutes for the other. For the mandatory minimum fines, jail terms, and federal driving prohibition ranges that come with an actual conviction, see impaired driving in Canada and DUI penalties in Canada.

Related Nova Scotia Steps

A licence suspension or an impaired-driving charge can also generate a court record and, later, a criminal record; see criminal record checks in Canada for how a conviction can show up on a background check. If you plan to cross the border, see travelling with a criminal record for the separate question of US entry after a conviction. A roadside suspension is not the same procedure as fighting a traffic ticket in Canada, and a novice driver's zero-tolerance rule sits alongside the province's broader graduated licensing rules. Nova Scotia's Warn-range lookback runs 10 years; compare that to New Brunswick's impaired driving rules, where the equivalent lookback window is 5 years.

Disclaimer

This article is informational only and is not legal advice. Two figures in this article could not be confirmed against a primary government fee schedule: the current dollar cost of the DWI/Addiction Services rehabilitation program, and the exact dollar amount of the Alcohol Interlock Program's application fee (a commonly circulated $39.50 figure was not found in the official schedule). The Alcohol Interlock Program's own handbook states a "10-year" revocation period for a third conviction that conflicts with the current statute's "indefinite" language; this article follows the statute. The 30-day Motor Vehicle Appeal Board deadline described above is strict, and missing it forfeits the appeal. Confirm current fees, program requirements, and deadlines directly with Access Nova Scotia, the Registrar of Motor Vehicles, or a licensed lawyer before relying on this page, and consult a lawyer promptly after any roadside suspension or impaired-driving charge.

Frequently Asked Questions

How long is a first Warn-range suspension in Nova Scotia?

7 days for a first Warn-range (0.05 to 0.079) reading within a 10-year lookback, under Motor Vehicle Act s.279C. A second occurrence within that period is 15 days, and a third or subsequent is 30 days.

Does a 90-day suspension replace a DUI charge in Nova Scotia?

No. The 90-day suspension under s.279A for a Fail-range reading, refusal, or impairment applies immediately and independently of any Criminal Code charge; the criminal case proceeds separately and can add its own penalties.

Is Nova Scotia's third-conviction licence revocation 10 years or indefinite?

It is indefinite. The Motor Vehicle Act's current text (s.67(5)(ba), s.67(6A)) states a third or subsequent impairment-related revocation within 10 years is indefinite. The Alcohol Interlock Program's own handbook describes it as a '10-year' minimum, but that conflicts with the statute, which controls.

How much does Nova Scotia's ignition interlock program cost?

Per the program's official fee schedule, installation is $150.00, monthly monitoring is $105.50, and other fees apply for removal, violation resets, and a refundable security deposit of $250.00, plus tax. The program's separate application fee is referenced but its dollar amount is not stated in the primary schedule.

How long do I have to appeal a Nova Scotia impaired-driving suspension?

An appeal of the Registrar's review decision on a 90-day Fail-range suspension must be filed with the Motor Vehicle Appeal Board within 30 days. Warn-range and drug-suspicion suspensions under ss.279C/279K/279I/279L do not appear to have the same appeal route, and s.279N expressly bars appeal of suspensions under ss.279I, 279K, and 279L.

Can my vehicle be impounded for impaired driving in Nova Scotia?

Yes, in two separate ways. An officer can have your vehicle towed at the roadside if no licensed driver is available when your licence is suspended, and if you are caught driving while already revoked for a Criminal Code impairment offence, the Registrar can impound your vehicle for 90 days on a first impound order or 180 days if you already have a prior one.