ISO 7010 · P-series · Prohibition
P002 No smoking
Smoking is not allowed here. It says nothing about other flames; P003 bans those too.
- ISO 7010 reference
- P002
- Registered title
No smoking
ISO Online Browsing Platform, ISO 7010 - P002, No smoking, reference number and registered title- Colour and shape
- Red ring with a diagonal bar, black symbol on white: Prohibition: do not do this here
What the red ring with a diagonal bar means
In HSE’s guidance on the UK Safety Signs and Signals Regulations 1996, a prohibition sign has a round shape
Health and Safety Executive (HSE), L64 Safety signs and signals: The Health and Safety (Safety Signs and Signals) Regulations 1996. Guidance on Regulations (third edition), Part 2, prohibitory signs, intrinsic features (a), page 14 and a black pictogram on white background, red edging and diagonal line (the red part to take up at least 35% of the area of the sign)
Health and Safety Executive (HSE), L64 Safety signs and signals: The Health and Safety (Safety Signs and Signals) Regulations 1996. Guidance on Regulations (third edition), Part 2, prohibitory signs, intrinsic features (b), page 14
Its colour stands for: Prohibition sign
, Dangerous behaviour; stop; shutdown; emergency cut-out devices; evacuate
Health and Safety Executive (HSE), L64 Safety signs and signals: The Health and Safety (Safety Signs and Signals) Regulations 1996. Guidance on Regulations (third edition), Table 1, red, meaning or purpose (page 12)
In the UK: HSE L64
No smoking
Health and Safety Executive (HSE), L64 Safety signs and signals: The Health and Safety (Safety Signs and Signals) Regulations 1996. Guidance on Regulations (third edition), name under the prohibitory signs in Schedule 1, page 14
In the US: OSHA
No OSHA general-industry rule we read names this sign or its subject. US signs follow OSHA 1910.145 and ANSI Z535; how the US sign classes work.
Signs people confuse with it, or find beside it
Other prohibition signs
Sources
ISO 7010 is a paid standard. Its OBP entries are free to view, but they are a script-driven app, so the title and reference number above are copied from the entry's own heading as it lists them (read 2026-09-29), not from the paid text. Other lines in quotation marks are HSE’s or OSHA’s words.
- Health and Safety Executive (HSE): L64 Safety signs and signals: The Health and Safety (Safety Signs and Signals) Regulations 1996. Guidance on Regulations (third edition) (published 2015). Used here: name under the prohibitory signs in Schedule 1, page 14; Part 2, prohibitory signs, intrinsic features (a), page 14; Part 2, prohibitory signs, intrinsic features (b), page 14; Table 1, red, instruction and information (page 12); Table 1, red, meaning or purpose (page 12). www.hse.gov.uk Checked 2026-09-29.
- ISO Online Browsing Platform: ISO 7010 - P002, No smoking (registered safety sign entry). Used here: reference number and registered title. www.iso.org Checked 2026-09-29.