R571
At a glance
- Sign code
- R571
- Type
- Regulatory
- Official meaning
- Selective-restriction plate R571: it limits the sign mounted above it to vehicles transporting dangerous substances.
What the Applies to vehicles transporting dangerous substances sign means
This is a supplementary plate fixed under another road sign. It means the sign above it applies only to vehicles transporting dangerous substances.
What you must do
Read it together with the sign above. That sign's instruction applies to vehicles transporting dangerous substances. If your vehicle is not in that class, the sign above does not apply to you, unless another plate also applies.
Know the mistake this sign turns on
Full access adds the confusion Applies to vehicles transporting dangerous substances is most often mistaken for and the hint for the test, on this sign and every other one — plus practice questions and timed mock papers. The practice sample and the readiness test are free.
See the free practice testSources
- Road Traffic Signs chart, National Department of TransportThe official chart. Sign R571 was checked against it, artwork and meaning, before being published here.
- National Road Traffic Regulations, 2000 — Schedule 1Where the prescribed meaning of each road traffic sign is set out.
Last updated 2026-08-23.