How is the CVOR violation rate calculated?

MTO divides your collision, conviction and inspection points by a threshold for each, over up to 24 months. The collision and conviction thresholds come from kilometres travelled per month, and the inspection threshold from units inspected. The overall rate is twice the collision percentage plus twice the conviction percentage plus the inspection percentage, divided by five.

What is a good CVOR violation rate?

Most carriers sit below 35%, where no intervention is triggered. An Excellent rating needs at least 24 months of operation in Ontario, an overall rate of 15% or less, a collision rate of 10% or less and an excellent facility audit. Satisfactory-unaudited needs an on-road performance level of 70% or less, and Satisfactory adds a passed audit.

How many CVOR points can my fleet have?

There is no fixed number, because each threshold depends on your rate of travel and your inspections. At 90,000 km a month over 24 months, MTO's tables give 16.20 collision points and 37.07 conviction points; at 140,000 km a month, 20.16 and 46.34. The inspection threshold for 6 units inspected is 8.62 points.

Why does my estimate differ from my CVOR abstract?

The abstract uses MTO's own records: the exact events in the window, the conviction point values and separate periods whenever your rate of travel changed. This tool uses one average rate and the points you enter. Treat the abstract or your online carrier record as the official figure, and this page as a way to see what moves it.

Do kilometres outside Canada count toward the CVOR threshold?

No. The rate of travel counts kilometres travelled in Canada by the power units under your certificate, and US-plated operators count Ontario kilometres only. Trailers and units plated in another Canadian province are left out. In MTO's own example, 216,000 km driven outside Canada over six months did not enter the rate of travel.

Free tool

CVOR violation rate calculator

Enter your kilometres, collisions, conviction points and inspection results to estimate each CVOR threshold, the share of each you have used and your overall violation rate, with the Ontario Ministry of Transportation's published formulas. It is an estimate, not your official record.

Kilometres travelled

Months in the period

24, or the number of months since your CVOR record started if that is less. Left blank, 24 is used.

Kilometres travelled in Canada in those months

All power units under your CVOR certificate: Ontario-plated ones (owned, leased, rented or run by owner-operators under contract) and US- or Mexico-plated ones that operate in Ontario. Leave out trailers and units plated in another province. US-plated operators count Ontario kilometres only.

Collisions with an impropriety noted

Count only collisions where the police report notes an impropriety (vehicle condition, driver action or driver condition). MTO scores them 2 points for property damage, 4 for personal injury and 6 for a fatal injury. Collisions with no impropriety stay on the record at 0 points.

Property damage

Personal injury

Fatal injury

Convictions

Conviction points in the period

Each safety-related conviction carries a value from MTO's Conviction Code Table, which the ministry sends on request rather than publishing; administrative convictions count 0. Take the points from your Level 2 abstract or online CVOR record.

Roadside inspections

Units inspected in the period

Add up every vehicle and every driver inspected across all inspections (a co-driver does not count). A Level 1 inspection of a tractor, one semi-trailer and the driver is 3 units.

Vehicle out-of-service points

Per unit, 1 point for the first category found out of service and 2 for each further category on the same unit. Defects that are not out of service score nothing.

Driver out-of-service points

The same rule, for the two driver categories (driver's licences and hours of service). Enter them as recorded: the tool applies MTO's 68.75% weighting.

Estimated overall violation rate

Enter the kilometres travelled to see the thresholds and the overall rate: the collision and conviction thresholds are built from them.

Collisions: ?; 0.00 points against a threshold of ?
Convictions: ?; 0.00 points against a threshold of ?
Inspections: 0.00%; 0.00 points against a threshold of 7.79

Rate of travel: 0 km a month over 24 months. The collision and conviction thresholds come from this rate; the inspection threshold comes from the units inspected.

An estimate from MTO's published formulas, with one average rate of travel for the whole period. It is not your CVOR record: the ministry's own figures are on your Level 2 abstract and online carrier record, and the ministry may intervene at any time when it sees a risk.

How MTO works out the rate

The 2026 reference guide describes the method. The formulas and threshold tables are in Appendices A and B of MTO's Commercial Vehicle Operators' Safety Manual, and this tool uses them as printed.

Rate of travel: kilometres travelled in Canada by the power units under your certificate (Ontario only for US-plated operators), divided by the months in the period. The period is 24 months, or fewer for a newer CVOR record.
Collision threshold over 24 months: 1.363 × R to the power 0.217 below 120,000 km a month, or 0.000144 × R from 120,000 km up, where R is the rate of travel. It is then prorated by the months in the period divided by 24.
Conviction threshold over 24 months: 2.54 × R to the power 0.235 below 120,000 km a month, or 0.000331 × R from 120,000 km up, prorated the same way. At 90,000 km a month, that gives 16.20 collision points and 37.07 conviction points over 24 months.
Inspection threshold: 7.789 + 0.139 × the number of units inspected. Inspection points are vehicle points plus driver points weighted at 68.75%, because MTO's analysis linked vehicle defects to a higher chance of future collisions than driver defects.
Each category's points are divided by its threshold to give a percentage. The overall violation rate is (2 × collision % + 2 × conviction % + inspection %) ÷ 5, so collisions and convictions count double.

What MTO may do at each level

From the March 2026 reference guide. The CVOR system triggers action as a carrier reaches each level, and the ministry may intervene at any time with the action that fits the risk.

Overall violation rate	What may happen
0 to 34%	Below 35%, where most carriers are. MTO expects you to keep monitoring your record and deal with risks as they come up.
35 to 49%	From 35%, the ministry may send a warning letter and expect a review of driver training, vehicle maintenance and company policies.
50 to 69%	From 50%, the ministry may decide a facility audit is warranted. Failing the audit, or not taking part, drops the safety rating to Conditional.
70 to 84%	From 70%, the safety rating drops to Conditional, with or without an audit, and a facility audit is still possible.
85 to 99%	From 85%, you may be called to an interview with a senior ministry official and must build an action plan. Without improvement, the CVOR may be suspended or cancelled.
100% or more	At 100% or more, overall or in any one category, the CVOR certificate may be suspended or cancelled, and you meet the Deputy Registrar to explain why you should keep it.

What this estimate leaves out

Changes in rate of travel. When your kilometres change significantly, MTO splits the window into periods, works out a percentage for each and weights them by their months. The tool uses one average rate, so a fleet that grew or shrank during the 24 months can read differently.
Conviction point values. MTO's Conviction Code Table is sent on request by the Carrier Sanctions and Investigation Office, not published, so the tool takes your conviction points as recorded rather than working them out from the offences.
Which events count. The ministry decides which collisions, convictions and inspections fall in the window. In the manual's worked examples, the 24 months leave out the most recent 30 days, and a vehicle impounded for critical defects adds no extra points, though the event is recorded.
Fleet size and drivers. The 2026 guide says thresholds vary with fleet size, drivers and kilometres. In the published formulas, fleet size enters through the kilometres of the vehicles that count, and drivers through the units inspected, so there is no separate fleet figure to enter.

Get your official numbers

Your actual rates are on your CVOR record. You can review it online at any time, free, by logging in with the email address on the record, or order a Level 2 abstract, which only the carrier can get: two years of summary data and five years of detailed collision, conviction and inspection events.

How to order a CVOR abstract (ontario.ca) ↗

Catch the problems before they become points

Hours of service and vehicle defects are both inspection categories that score points. Geotab Drive, the ELD app High Point GPS installs, records driving time from the engine and runs pre-trip and post-trip inspections on the driver's phone. Our AI dash cams warn drivers about risky driving and capture the footage of an incident. Our Montreal team sets both up for Ontario fleets.

See the ELD app →See the AI dash cams →

CVOR violation rate questions

How is the CVOR violation rate calculated?: MTO divides your collision, conviction and inspection points by a threshold for each, over up to 24 months. The collision and conviction thresholds come from kilometres travelled per month, and the inspection threshold from units inspected. The overall rate is twice the collision percentage plus twice the conviction percentage plus the inspection percentage, divided by five.
What is a good CVOR violation rate?: Most carriers sit below 35%, where no intervention is triggered. An Excellent rating needs at least 24 months of operation in Ontario, an overall rate of 15% or less, a collision rate of 10% or less and an excellent facility audit. Satisfactory-unaudited needs an on-road performance level of 70% or less, and Satisfactory adds a passed audit.
How many CVOR points can my fleet have?: There is no fixed number, because each threshold depends on your rate of travel and your inspections. At 90,000 km a month over 24 months, MTO's tables give 16.20 collision points and 37.07 conviction points; at 140,000 km a month, 20.16 and 46.34. The inspection threshold for 6 units inspected is 8.62 points.
Why does my estimate differ from my CVOR abstract?: The abstract uses MTO's own records: the exact events in the window, the conviction point values and separate periods whenever your rate of travel changed. This tool uses one average rate and the points you enter. Treat the abstract or your online carrier record as the official figure, and this page as a way to see what moves it.
Do kilometres outside Canada count toward the CVOR threshold?: No. The rate of travel counts kilometres travelled in Canada by the power units under your certificate, and US-plated operators count Ontario kilometres only. Trailers and units plated in another Canadian province are left out. In MTO's own example, 216,000 km driven outside Canada over six months did not enter the rate of travel.

Sources

Read on ontario.ca on October 23, 2026. The threshold formulas are from the September 2022 safety manual, the MTO document that prints them. The intervention levels are from the March 2026 reference guide, which does not print the formulas.