R521
At a glance
- Sign code
- R521
- Type
- Regulatory
- Official meaning
- Selective-restriction plate R521: the sign above it applies to the right.
What the Applies to the right sign means
This is a supplementary plate fixed under another road sign. It means the sign above applies to the right.
What you must do
Read it with the sign above: apply that sign's instruction to the right.
Know the mistake this sign turns on
Full access adds the confusion Applies to the right 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 R521 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 2026-08-25.