All dimensions are in millimetres unless otherwise specified
| Code | WA3 |
|---|---|
| Rule | W10-3 |
| MoTSaM | none |
| EPS image | Advance warning of traffic control devices Speed Limit Ahead 30 km/h |
| Non-labeled image | Advance warning of traffic control devices Speed Limit Ahead 30 km/h |
| Last updated | 6 December 2016 |
| a : | 600 | 750 | 900 |
| r : | 50 | 50 | 60 |
| b : | 450 | 563 | 675 |
| c : | 75 | 94 | 113 |
| d : | 15 | 20 | 25 |
| e : | 10 | 10 | 10 |
| Numerals : | 150D | 188D | 225D |
| Border | black |
| Background | reflectorised yellow |
| Symbol | Speed Limit Symbol has red reflectorised red border, white reflectorised background, and black legend |
