E6Supplementary plate

E6 In wet conditions (in rain)

Limits the validity of the sign above which it is placed to wet road conditions.

In Czech

The exam is in Czech, so it is worth knowing the Czech name. Below is the official text from Czech law, which is not translated.

Za mokra (za deště)

Tabulka omezuje platnost značky, pod kterou je umístěna, na podmínky mokré vozovky.

Příloha č. 6 k vyhlášce č. 294/2015 Sb., ve znění vyhlášky č. 205/2025 Sb.