Special regulation signs inform drivers about certain behaviours.

General specifications:

- In aluminum or zinc plated steel sheet;
- Reflective sheeting - 3, 7, 10 or 15 years;
- Edge - single or double;
- Thickness -1, 1.5 or 2 mm.

Milimeter dimensions, without border (width x height):
- 660x820;
- 1150x1400.