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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No Smoking / No Vaping Signs
No Smoking / No Vaping Signs
No Entry Signs
No Entry Signs
No Exit Signs
No Exit Signs
No Access Signs
No Access Signs
Machinery Prohibition Signs
Machinery Prohibition Signs

Prohibition Signs Guide

Prohibition Signs communicate activities that are not allowed in a particular area. Recognised by their red circular border and diagonal red line, these signs help prevent dangerous behaviour, protect people and support workplace health and safety procedures.

Whether restricting access, prohibiting smoking or preventing the use of equipment, prohibition signs provide a clear visual message that helps reduce accidents and improve compliance across a wide range of environments.

Where Are Prohibition Signs Used?

  • Factories and manufacturing facilities
  • Warehouses and distribution centres
  • Construction sites
  • Office buildings
  • Schools, colleges and universities
  • Hospitals and healthcare facilities
  • Retail premises and public buildings
  • Plant rooms and restricted access areas

Available Materials

Self-Adhesive Vinyl

Ideal for smooth walls, doors, machinery and workplace surfaces.

Rigid Plastic

Durable and suitable for most commercial, industrial and public environments.

Aluminium

Provides enhanced durability for demanding indoor and outdoor locations.

Photoluminescent Material

Available on selected signs for improved visibility during low-light conditions.

Frequently Asked Questions

What are prohibition signs?

Prohibition signs are safety signs used to indicate actions or behaviours that are not permitted in a specific area.

What colour are prohibition signs?

Prohibition signs feature a red circular border with a diagonal red line over a black symbol on a white background.

Why are prohibition signs important?

They help prevent unsafe behaviour, reduce risks and improve compliance with workplace safety procedures.

Where should prohibition signs be displayed?

They should be positioned where prohibited activities may occur, including entrances, restricted areas and hazardous locations.

What are common examples of prohibition signs?

Examples include no smoking signs, no entry signs, no pedestrians signs, do not use signs and authorised personnel only signs.

Are prohibition signs required in workplaces?

They are commonly used wherever specific activities must be restricted to maintain workplace safety and reduce risk.

Can prohibition signs be customised?

Yes. Rainbow Safety can manufacture bespoke prohibition signs with custom wording, symbols and site-specific instructions.

What material is best for prohibition signs?

Rigid plastic is suitable for most workplace environments, while aluminium offers enhanced durability for outdoor and industrial locations.

Why Buy From Rainbow Safety?

  • Manufactured in the UK
  • Over 30 years of workplace safety signage expertise
  • Fast dispatch on standard products
  • Trade discounts available
  • Custom prohibition signs available
  • Large range of workplace and health & safety signage
  • Trusted by UK businesses, contractors and local authorities
  • Expert support from an experienced safety signage team