Ontario's Highway Traffic Act requires drivers to maintain a following distance that is reasonable and prudent given their speed, traffic, and road conditions — there is no single fixed distance written into the general rule. A conviction carries demerit points and a fine, and often follows a collision, where prosecutors may offer it as a reduced charge compared to careless driving. Commercial vehicles face a more specific numeric rule at higher speeds, along with additional CVOR consequences for commercial drivers.
- The general standard is whether your following distance was "reasonable and prudent" for the speed, traffic, and conditions — there is no fixed distance in the general rule.
- Because the standard is flexible, it is largely a judgment call based on the officer's observations at the time.
- A conviction generally carries demerit points and a fine, and it shows up on your driving record.
- Commercial vehicles travelling above a certain speed are subject to a more specific numeric following-distance rule, plus CVOR point consequences.
- A following-too-closely charge sometimes arises as a reduced charge after a rear-end collision, in place of a more serious careless driving charge.
- Novice (G1/G2) drivers convicted of this offence can face escalating sanctions, including potential licence suspension, under Ontario's graduated licensing rules.
The Short Answer
Following too closely is governed by a flexible legal standard — whether your distance behind the vehicle ahead was reasonable and prudent given your speed, the traffic, and the road conditions at the time. There is no fixed distance written into the general rule, which means these tickets often come down to the officer's judgment call versus the actual conditions that existed.
The "Reasonable and Prudent" Standard
Because the law does not set a specific number of car lengths or seconds for ordinary drivers, what counts as too close depends heavily on context — highway speed in clear conditions allows for a very different safe distance than slow city traffic in the rain. This flexibility is a double-edged sword: it means officers have discretion in issuing the ticket, but it also means a defence has real room to argue the distance was, in fact, appropriate for the specific conditions.
The Specific Rule for Commercial Vehicles
Commercial motor vehicles travelling above a certain speed threshold are subject to a more specific, numeric minimum following-distance rule than the general standard that applies to ordinary drivers. A conviction for a commercial driver can also carry CVOR points, which affect not just the driver's own record but their employer's safety rating — see our guide on commercial driver traffic tickets in Ontario for how these added consequences work.
When This Comes Up After a Collision
Following too closely frequently appears after a rear-end collision, sometimes as the original charge and sometimes as a reduced charge offered in place of a more serious careless driving charge. Prosecutors sometimes extend this kind of offer specifically to resolve a file efficiently — whether accepting it is a good idea depends on the strength of any defence to the original, more serious allegation, which is worth assessing before simply accepting what is offered.
Don't assume a reduced charge offer is automatically the best outcome available. If there is a genuine defence to the underlying allegation, it may be worth pursuing rather than accepting a guilty plea to any charge, even a lesser one.
Consequences for Novice Drivers
G1 and G2 drivers face Ontario's graduated licensing escalating sanctions system, and a following-too-closely conviction can contribute to a licence suspension in a way that would not affect a fully licensed driver — see our guide on G1/G2 novice licence tickets in Ontario for how these rules generally work for newer drivers.
Building a Defence
- The distance was actually reasonable — given the specific speed, traffic density, and weather at the time.
- Sudden braking by the vehicle ahead — where the lead vehicle's own conduct, not your following distance, caused the situation.
- Dashcam or other footage — directly showing the actual conditions and distance involved.
What to Do If You Are Charged
Review the specific conditions at the time of the ticket and whether any available footage supports your position. See our general guide on how to fight a traffic ticket in Ontario for the process. Other common tickets that sometimes arise from the same stop or incident, including seatbelt violations, the move over law, and HOV lane violations, each carry their own specific standards worth understanding separately. Call 416-274-2222 for a free, confidential consultation.
Frequently Asked Questions
Not for most drivers under the general rule. The legal standard is whether your following distance was reasonable and prudent given your speed, traffic, and road conditions at the time — a flexible test rather than a fixed number. Commercial vehicles above a certain speed are subject to a more specific numeric distance rule.
A conviction generally carries demerit points in addition to a fine — confirm the current specific figures against your ticket or with the court, since these amounts are set by regulation and can be updated.
This is a common pattern. Following too closely is a less serious charge than careless driving, and prosecutors sometimes offer it as a resolution in exchange for a guilty plea, avoiding the time and cost of contesting the more serious charge. Whether accepting that offer makes sense depends on your specific situation and the strength of any defence to the original charge.
It can. Novice drivers face escalating sanctions under Ontario's graduated licensing system, and a conviction for this offence can contribute to a licence suspension for a G1 or G2 driver in a way that might not affect a fully licensed driver the same way.
Commercial motor vehicles travelling above a certain speed threshold are subject to a more specific minimum following-distance requirement than the general "reasonable and prudent" standard, and a conviction can also carry CVOR points with consequences for a commercial driver's record and their employer's safety rating.
Yes. Because the standard is a judgment call based on the specific conditions at the time, there is often real room to challenge the officer's assessment, particularly with dashcam footage or other evidence of the actual traffic and road conditions.