New Brunswick Knowledge Test Coach
Safe drivingQuestion 240 of 309

When are portable door or fender mirrors against the law?

  1. When you tow a trailer
  2. When you drive at night
  3. When you drive in winter
  4. When you do not tow a trailer or another vehicle
Show answer

Correct answer: When you do not tow a trailer or another vehicle

Add-on door or fender mirrors are legal only when you tow a trailer or another vehicle.

Source: New Brunswick Driver's Handbook (Government of New Brunswick, 2022), 3.4 Mirror, page 30

Practice safe driving

Questions last reviewed: 18 October 2026