Prohibition Signs

Prohibition Signs are used to prevent unsafe behaviour and communicate actions that are not permitted within a workplace or public environment. Also known as no entry signs, forbidden action signs or prohibition safety signs, they help reduce risks by clearly identifying activities that could cause injury, damage or non-compliance.

These signs are widely used by factories, warehouses, construction sites, offices, schools, hospitals, retail premises, contractors and facilities managers to promote safe working practices.

Common installation locations include entrances, restricted areas, hazardous zones, machinery locations, loading bays, fire exits, pedestrian routes and workplace facilities.

Available in self-adhesive vinyl, rigid plastic, aluminium and selected photoluminescent materials, many of our prohibition signs are manufactured in the UK for excellent durability, visibility and long-term performance.

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Subcategories

No Smoking / No Vaping Signs
No Entry Signs
No Exit Signs
No Access Signs
Machinery Prohibition Signs
Danger Confined Space No Unauthorised Entry Permit To Work Must Be Obtained safety sign

Danger Confined Space No Unauthorised Entry Permit To Work Must Be Obtained Sign

Warn personnel of confined space hazards and restrict access with this Danger Confined Space No Unauthorised Entry Permit To Work Must Be Obtained Sign.
• Warns of confined space dangers, prohibits unauthorised entry and requires a permit to work before access
• Suitable for industrial sites, construction areas, plant rooms and restricted access zones
• High-contrast warning, prohibition and mandatory symbols provide excellent visibility and quick recognition
• Available in Rigid Plastic (1mm), Rigid Plastic 1mm (Self Adhesive Back), Rigid Plastic (2mm), Rigid Plastic 2mm (Self Adhesive Back), and Self Adhesive Vinyl
• Helps support safe access procedures and improve compliance with confined space safety requirements
£6.86
Do Not Wear Loose Clothing When Operating This Machine Sign with red prohibition symbol

Do Not Wear Loose Clothing When Operating This Machine Sign

Clearly warns operators not to wear loose clothing near machinery, helping reduce entanglement risks and promote safer machine operation.
• Clearly instructs operators not to wear loose clothing when operating machinery
• Suitable for factories, workshops, machinery rooms and industrial areas
• Bold red and white prohibition design provides high visibility and quick recognition
• Available in Rigid Plastic (1mm), Rigid Plastic 1mm (Self Adhesive Back), Rigid Plastic (2mm), Rigid Plastic 2mm (Self Adhesive Back) and Self Adhesive Vinyl
• Helps reduce entanglement risks and improve workplace safety awareness
£2.71
No Pacemakers Beyond This Point Sign with red prohibition symbol

No Pacemakers Beyond This Point Sign

Clearly restricts access for individuals with pacemakers beyond a designated point to provide clear safety guidance in sensitive areas.
• Clearly indicates that individuals with pacemakers must not proceed beyond the designated point
• Suitable for hospitals, industrial sites, laboratories and restricted zones
• Bold red and white prohibition design provides high visibility and quick recognition
• Available in Rigid Plastic (1mm), Rigid Plastic 1mm (Self Adhesive Back), Rigid Plastic (2mm), Rigid Plastic 2mm (Self Adhesive Back) and Self Adhesive Vinyl
• Helps warn individuals with pacemakers before entering restricted areas
£2.71
No entry traffic sign with red circular symbol and white horizontal bar

No Entry Traffic Sign

Prevent unauthorised vehicle access with this highly visible No Entry Traffic Sign.
• Clearly indicates that vehicle entry is prohibited beyond the designated point
• Ideal for private roads, industrial estates, car parks, and restricted access routes
• Bold red and white design ensures excellent visibility and quick recognition
• Available in Aluminium Composite (3mm) and Aluminium Composite With Fixing Channel (3mm)
• Helps improve traffic control, site safety, and access management
£53.77
Do Not Oil Or Clean Moving Machinery Sign with red prohibition symbol

Do Not Oil Or Clean Moving Machinery Sign

Clearly warns against oiling or cleaning machinery while it is moving, helping reduce machinery accidents and promote safer maintenance practices.
• Clearly instructs people not to oil or clean machinery while it is moving
• Suitable for factories, workshops, warehouses and industrial machinery areas
• Bold red and white prohibition design provides high visibility and quick recognition
• Available in Rigid Plastic (1mm), Rigid Plastic 1mm (Self Adhesive Back), Rigid Plastic (2mm), Rigid Plastic 2mm (Self Adhesive Back) and Self Adhesive Vinyl
• Helps reduce machinery accidents and improve workplace safety
£2.71
No Unauthorised Persons Allowed Beyond This Point Sign with red prohibition symbol

No Unauthorised Persons Allowed Beyond This Point Sign

Clearly restricts access beyond a designated point to authorised personnel only and helps maintain controlled access within the workplace.
• Clearly prevents unauthorised persons from proceeding beyond designated access points
• Suitable for doors, gates, warehouses, factories and restricted work areas
• Bold red and white prohibition design provides high visibility and quick recognition
• Available in Rigid Plastic (1mm), Rigid Plastic 1mm (Self Adhesive Back), Rigid Plastic (2mm), Rigid Plastic 2mm (Self Adhesive Back) and Self Adhesive Vinyl
• Helps improve workplace security and maintain controlled site access
£2.71
No Access Beyond This Point Sign with red prohibition symbol

No Access Beyond This Point Sign

Clearly prevents unauthorised entry beyond a designated point, helping maintain secure and controlled access to restricted areas.
• Clearly states that access beyond the designated point is prohibited
• Suitable for workplaces, construction sites, private areas and restricted zones
• Bold red and white prohibition design provides high visibility and quick recognition
• Available in Rigid Plastic (1mm), Rigid Plastic 1mm (Self Adhesive Back), Rigid Plastic (2mm), Rigid Plastic 2mm (Self Adhesive Back) and Self Adhesive Vinyl
• Helps improve site security, safety awareness and access control
£2.71
Please do not smoke prohibition safety sign

Please Do Not Smoke Sign

Politely reminds staff, visitors and the public that smoking is prohibited within the designated area.
• Indicates that smoking is not permitted in the area
• Ideal for workplaces, entrances, public buildings and shared indoor spaces
• Clear prohibition symbol and bold text ensure instant recognition
• Available in Extra Glow in the Dark Self Adhesive (Class C), Extra Glow in the Dark Rigid Plastic (Class C), Rigid Plastic (1mm), Rigid Plastic (2mm), Self Adhesive Vinyl and Brushed Aluminium (3mm)
• Helps support smoke-free compliance and reduce exposure to second-hand smoke
£2.71
No entry traffic sign with white text on blue background

No Entry Traffic Sign

Clearly restrict vehicle access with this highly visible No Entry Traffic Sign.
• Warns drivers that entry is prohibited beyond the designated point
• Ideal for private roads, car parks, industrial estates, and restricted access routes
• Bold white text on a blue background ensures excellent visibility and quick recognition
• Available in Aluminium Composite (3mm) and Aluminium Composite With Fixing Channel (3mm)
• Helps improve traffic control, site safety, and access management
£42.65
Do Not Touch Men Working Sign with red prohibition symbol

Do Not Touch Men Working Sign

Clearly warns people not to touch or interfere with equipment while work is taking place, helping maintain safety during active operations.
• Clearly instructs people not to touch or interfere while men are working
• Suitable for construction sites, maintenance areas, workshops and industrial zones
• Bold red and white prohibition design provides high visibility and quick recognition
• Available in Rigid Plastic (1mm), Rigid Plastic 1mm (Self Adhesive Back), Rigid Plastic (2mm), Rigid Plastic 2mm (Self Adhesive Back) and Self Adhesive Vinyl
• Helps improve workplace safety and reduce disruption during operations
£2.71
No Admittance Without A Permit To Work Sign with red prohibition symbol

No Addmittance Without A Permit To Work Sign

Clearly restricts entry to controlled work areas unless a valid permit to work is in place, helping reinforce safe access procedures.
• Clearly states that admittance without a permit to work is prohibited
• Suitable for construction sites, industrial facilities and restricted access zones
• Bold red and white prohibition design provides high visibility and quick recognition
• Available in Rigid Plastic (1mm), Rigid Plastic 1mm (Self Adhesive Back), Rigid Plastic (2mm), Rigid Plastic 2mm (Self Adhesive Back) and Self Adhesive Vinyl
• Helps reinforce permit-to-work procedures and workplace safety compliance
£6.86
No Smoking Company Policy prohibition sign

No Smoking Company Policy Sign

Clearly informs staff, visitors and contractors that smoking is prohibited in accordance with company policy to support smoke-free safety and workplace compliance.
• Clearly states that smoking is prohibited under company policy
• Ideal for workplaces, offices, warehouses and staff facilities
• Bold prohibition symbol and text ensure instant recognition
• Available in Extra Glow in the Dark Self Adhesive (Class C), Extra Glow in the Dark Rigid Plastic (Class C), Rigid Plastic (1mm), Rigid Plastic (2mm), Self Adhesive Vinyl and Brushed Aluminium (3mm)
• Helps reinforce workplace smoking policies and reduce fire risks in indoor environments
£2.71