Sign C22c: Zero-emission zone; closed to vehicles that are not zero-emission

Legal meaning

Zero-emission zone.

Source: RVV 1990 annex 1 · checked 2026-10-23

Shape and colour

Rectangular white sign with a red-rimmed circle and the words nul-emissiezone: emission-free vehicles of the named categories only.

Where the sign stands

On every access road of the zone, right after the junction where the zone starts, on the right; a plate names the categories.

What the exam asks about this sign

The exam asks how it differs from the low-emission zone: in a zero-emission zone only emission-free vehicles, such as electric or hydrogen vehicles, of the named categories (usually vans and lorries) may enter. An ordinary petrol car often may, because the zone targets logistics — read the plate. Trap: 'zero emission' does not mean every combustion vehicle is banned.

Often confused with

• Environmental (low-emission) zone C22a — Low-emission zone: keeps out only the dirtiest vehicles.
• End of environmental zone C22b — End of the low-emission zone.
• Closed to all motor vehicles C12 — Closed to all motor vehicles, whatever their emissions.