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Rules of the road · about 2 min read

Reflectors and reflective vehicle markings

Understand the rule, its conditions and how to apply it

What you will learn

  • Explain the purpose of this rule.
  • Apply the procedure and recognise its limitations.

Purpose and essential terms

A retro-reflector returns light towards the source, helping an approaching driver see a vehicle when their headlights illuminate it. It is different from a lamp, which produces its own light. Both must remain visible and correctly fitted.

Rear retro-reflectors are red. The manual requires a rear red reflector on a motorcycle and two rear red reflectors, one on each side, on light vehicles. Heavy vehicles have two at the same height, one on each rear side.

Key idea: A retro-reflector returns light towards the source, helping an approaching driver see a vehicle when their headlights illuminate it.

How to apply the rule

Inspect reflective fittings for dirt, damage, missing pieces or obstruction by the load. For heavy vehicles or combinations exceeding 7 metres in overall length, the reference requires yellow side reflectors spaced so successive reflectors are no more than 3.6 metres apart, subject to the described reflective-strip provision.

The manual requires prescribed yellow reflective material on the sides and rear of goods vehicles above 10,000 kg GVM. Check the actual class and approved fittings rather than assuming a few decorative stickers meet the requirement. Reflective markings help identify a long vehicle’s outline at night.

Key idea: Do not begin the trip with required visibility obscured.

Conditions and easily confused points

Red rear reflectors do not replace red rear lamps or brake lamps. A reflective strip cannot signal that you are slowing, and a working brake lamp does not remove the need for required reflectors.

The side-marker rules depend on length and class, whereas a speed-class rule may use a different mass threshold. Do not memorise one heavy-vehicle number and apply it to every requirement.

Key idea: Apply the full rule to the actual vehicle, road and conditions.

Worked road situation

A long goods vehicle has a rear load covering its reflective markings.

  1. Do not begin the trip with required visibility obscured.
  2. Adjust and secure the load so lamps and reflective fittings are exposed.
  3. Check side and rear markings against the actual vehicle’s requirements.

Quick recap

  • Do not begin the trip with required visibility obscured.
  • Adjust and secure the load so lamps and reflective fittings are exposed.
  • Check side and rear markings against the actual vehicle’s requirements.

Practice questions on reflectors and reflective vehicle markings

1 What colour are rear retro-reflectors?

  1. Blue
  2. Red
  3. Green
Show the answer

Answer B: Red

Rear retro-reflectors are red. Light vehicles require two at the rear, one on each side; a motorcycle requires a rear red reflector. For heavy vehicles or combinations exceeding seven metres overall length, the manual specifies yellow reflectors on each side with no more than 3.6 m between successive reflectors, unless compliant yellow reflective strips are fitted. It requires prescribed yellow reflective material on sides and rear of goods vehicles with GVM over 10,000 kg.

Memory tip: Read the full rule, including its conditions and exceptions.

All vehicle codes

2 Where are the two rear reflectors of a light motor vehicle fitted?

  1. One on each front tyre
  2. One on each side at the rear
  3. Both inside the glove compartment
Show the answer

Answer B: One on each side at the rear

Rear retro-reflectors are red. Light vehicles require two at the rear, one on each side; a motorcycle requires a rear red reflector. For heavy vehicles or combinations exceeding seven metres overall length, the manual specifies yellow reflectors on each side with no more than 3.6 m between successive reflectors, unless compliant yellow reflective strips are fitted. It requires prescribed yellow reflective material on sides and rear of goods vehicles with GVM over 10,000 kg.

Memory tip: Read the full rule, including its conditions and exceptions.

All vehicle codes

3 What rear reflector colour is required on a motorcycle?

  1. Red
  2. Yellow only
  3. Blue
Show the answer

Answer A: Red

Rear retro-reflectors are red. Light vehicles require two at the rear, one on each side; a motorcycle requires a rear red reflector. For heavy vehicles or combinations exceeding seven metres overall length, the manual specifies yellow reflectors on each side with no more than 3.6 m between successive reflectors, unless compliant yellow reflective strips are fitted. It requires prescribed yellow reflective material on sides and rear of goods vehicles with GVM over 10,000 kg.

Memory tip: Read the full rule, including its conditions and exceptions.

All vehicle codes

4 What is the purpose of reflective material on a heavy vehicle?

  1. To replace all its lights
  2. To make its outline more visible to other road users
  3. To increase its speed limit
Show the answer

Answer B: To make its outline more visible to other road users

Rear retro-reflectors are red. Light vehicles require two at the rear, one on each side; a motorcycle requires a rear red reflector. For heavy vehicles or combinations exceeding seven metres overall length, the manual specifies yellow reflectors on each side with no more than 3.6 m between successive reflectors, unless compliant yellow reflective strips are fitted. It requires prescribed yellow reflective material on sides and rear of goods vehicles with GVM over 10,000 kg.

Memory tip: Read the full rule, including its conditions and exceptions.

All vehicle codes

Part of the guide: Vehicle lights

More rules of the road chapters

Sources: NaTIS Rules of the Road, PDF p. 33, sections 6.43–6.44; iDriving K53 manual, PDF pp. 91–102 (comparison; incomplete text extraction checked against official reference).

AceK53 is an independent study aid based on public road traffic manuals and is not an official test. Always confirm requirements with your driving licence testing centre.