Sign type set by Directive 92/58/EEC (Annex II) and the UK Health and Safety (Safety Signs and Signals) Regulations 1996 (Schedule 1); pictogram drawn to ISO 7010, which both allow.

No open flame; fire, open ignition sources and smoking prohibited

Red prohibition ring and diagonal bar over a black burning match with a large flame. · also called “P003”, “burning match crossed out”, “no naked flames”, “no open fire”, “no smoking and no naked flames”

What the No open flame; fire, open ignition sources and smoking prohibited symbol means

No open flames, fire or smoking

Open flames, fire and smoking are all forbidden here, usually because flammable materials or vapours are present. Do not light matches or lighters and do not smoke or bring any other naked flame into the area.

Source · Standard ISO 7010 Graphical symbols — Safety colours and safety signs — Registered safety signs · checked Nov 11, 2026

Where it appears

Prohibition signs

ISO 7010
—This meaning

Questions about the No open flame; fire, open ignition sources and smoking prohibited symbol

What does the No open flame; fire, open ignition sources and smoking prohibited symbol mean?: Open flames, fire and smoking are all forbidden here, usually because flammable materials or vapours are present. Do not light matches or lighters and do not smoke or bring any other naked flame into the area.
What does the No open flame; fire, open ignition sources and smoking prohibited symbol look like?: Red prohibition ring and diagonal bar over a black burning match with a large flame. It is also called “P003”, “burning match crossed out”, “no naked flames”, “no open fire” and “no smoking and no naked flames”.
Which standard defines the No open flame; fire, open ignition sources and smoking prohibited symbol?: It is listed as ISO 7010-P003.

Checked against the source · Nov 11, 2026 · How we verify

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