Following distance — Virginia Permit Test
Following distance on the Virginia permit test — 7 rules, each with the reason behind it and a question on it while it is fresh.
The rules
Use the two, three and four second rule to check your following distance. Under 35 miles per hour allow two seconds, from 35 to 45 allow three, and from 46 to 70 allow four.
Counting seconds works at any speed, because the faster you go the further the car travels while you count.
At 35 to 45 miles per hour, allow three seconds of following distance.
Each step up in speed adds a second because the car covers more ground before your foot has even reached the brake.
At 46 to 70 miles per hour, allow four seconds of following distance.
Past 70 miles per hour no gap is long enough to save you, which is why the rule simply stops there.
To measure your following distance, watch the car ahead pass a fixed object and count the seconds until you reach the same place.
A gap in car lengths means nothing at speed, and this is the only measurement a driver can take while driving.
Increase your following distance behind a large vehicle that blocks your view, in bad weather or heavy traffic, when leaving an expressway, behind a motorcycle or bicycle, and when you are being tailgated.
Every one of these takes away either your view or your room, and extra distance is the only thing that gives either back.
If a driver is tailgating you, do not brake suddenly. Move over if you can, or gently tap the brakes to flash your lights and slow down.
Braking hard at a tailgater makes them hit you, and the crash they cause still costs you the car and the day.
Help the driver behind you by keeping a steady speed and tapping your brakes to warn them before you slow down or stop.
Brake lights are the only warning the driver behind gets, and they come on too late if the first press is the hard one.
On the test
How many seconds of following distance are needed under 35 miles per hour?
Two seconds behind the car ahead. Counting seconds works at any speed, because the faster you go the further the car travels while you count.
How this works
Most practice tests hand you a bank of questions and leave the manual somewhere else. This one puts them together.
You read one law and the reason behind it, then answer a question on that law while it is still fresh. Get it right and you move on; get it wrong and you have found the gap while it is cheap to fix, not on the morning of the exam.
Learning one rule at a time, and proving it immediately, is what turns a manual you skimmed into something you actually know — and it makes studying feel like getting somewhere rather than like waiting to find out.
Where these come from
Every rule here is checked against Virginia Driver’s Manual, published by the Virginia Department of Motor Vehicles, and against the state code itself. Last checked 2026-09-02.
- https://www.dmv.virginia.gov/licenses-ids/exams/know-exam
- https://www.dmv.virginia.gov/sites/default/files/forms/dmv39.pdf
- https://www.dmv.virginia.gov/sites/default/files/documents/dmv39i.pdf
- https://www.dmv.virginia.gov/licenses-ids/learners/apply
- https://www.dmv.virginia.gov/licenses-ids/learners/restrictions
- https://law.lis.virginia.gov/vacode/title46.2/section46.2-870/
- https://law.lis.virginia.gov/vacode/title46.2/section46.2-873/
- https://law.lis.virginia.gov/vacode/title46.2/section46.2-874/
- https://law.lis.virginia.gov/vacode/title46.2/section46.2-862/