EN71-3 for 3D Printed Toys (UK Guide) – Understanding Compliance

Recently there have been discussions in various groups about EN71-3 compliance for 3D printed toys. As more small businesses begin producing toys using 3D printing, questions about testing and compliance are becoming increasingly common. Much of the conversation comes from people trying to do the right thing after speaking with Trading Standards or testing laboratories. That’s a good thing. Toy safety matters. However, some of the conclusions being shared online can unintentionally create confusion about how compliance actually works. This article explains the key points around EN71-3 testing and 3D printed toys, and where misunderstandings sometimes occur. 
What EN71-3 Actually Tests
The EN 71-3 Toy Safety Standard is part of the EN71 series of toy safety standards used across the UK and Europe.In Great Britain, toys must comply with the
UK Toy Safety Regulations 2011.

These regulations set out the essential safety requirements that toys must meet before they can be placed on the market. Manufacturers must ensure their products are safe, carry out a safety assessment, maintain technical documentation, and issue a Declaration of Conformity.

Standards such as EN71-1 (mechanical and physical properties), EN71-2 (flammability), and EN71-3 are commonly used by manufacturers as recognised methods for demonstrating conformity with those safety requirements.

EN71-3 specifically deals with the migration of certain chemical elements from toy materials and parts of toys. In simple terms, the test checks whether harmful elements could leach out of materials if a child sucks, chews, or ingests small parts of a toy.

Young children frequently place toys in their mouths, so the test simulates conditions similar to what might occur in the digestive system. Laboratory analysis is then used to measure whether the amount of certain elements released from the material stays within the strict limits defined by the standard.

The focus of EN71-3 is therefore on the chemical behaviour of the materials used in toys, helping ensure that toys do not release harmful substances during normal use.

For reference, the UK legislation governing toy safety can be viewed here:
https://www.legislation.gov.uk/uksi/2011/1881/contents

UK Government guidance on toy safety is available here:
https://www.gov.uk/government/publications/toys-safety-regulations-2011

Are 3D Printing Businesses the Manufacturer?

Yes. When a business 3D prints toys and sells them, it is generally considered the manufacturer of the finished product under the UK Toy Safety Regulations 2011.

This means the business placing the toy on the market is responsible for ensuring the toy complies with the safety requirements of the regulations.

Manufacturers must:

·        carry out a safety assessment

·        maintain technical documentation (technical file)

·        ensure the toy meets the essential safety requirements

·        issue a Declaration of Conformity

·        apply the UKCA marking

Being the manufacturer means the responsibility for compliance sits with the seller of the toy.

However, this does not mean that every manufacturer must personally commission all laboratory testing themselves.

Across many industries, manufacturers rely on compliance documentation from suppliers and component manufacturers as part of their conformity assessment.

For example:

·        toy companies rely on paint supplier test reports

·        electronics manufacturers rely on component compliance documentation

·        plastic product manufacturers rely on polymer material test data

These documents can form part of the technical evidence used to demonstrate compliance.

The same principle can apply when producing toys using materials such as 3D printing filaments.

If a filament manufacturer provides EN71-3 test documentation for the material, that information may form part of the evidence used in the manufacturer’s technical file.

The responsibility still rests with the toy manufacturer to ensure that the materials used are safe and appropriate for the intended product.

Being the manufacturer of the toy means being responsible for safety and compliance.

It does not automatically mean that every individual toy seller must conduct their own laboratory testing from scratch, particularly when reliable compliance documentation for the materials already exists.

Instead, manufacturers typically combine:

·        material safety evidence

·        supplier documentation

·        risk assessment

·        technical documentation

to demonstrate compliance with the Toy Safety Regulations.

Further information on manufacturer responsibilities can be found in UK Government guidance on the Toys (Safety) Regulations:
https://www.gov.uk/government/publications/toys-safety-regulations-2011

Trading Standards guidance is also available via Business Companion:
https://www.businesscompanion.info/en/quick-guides/product-safety/toys

Does the EN71-3 Test Have to Be in Your Company Name?

A common point of confusion is whether EN71-3 testing must be carried out in the name of the business selling the toy.

Under the UK Toy Safety Regulations 2011, the manufacturer placing a toy on the market is responsible for ensuring the product complies with the essential safety requirements and for maintaining the technical documentation that supports that compliance.

However, the regulations do not state that laboratory test reports must be issued in the name of the toy manufacturer.

Instead, the requirement is that the manufacturer must hold sufficient technical documentation demonstrating compliance with the safety requirements.

In practice, this documentation can include a range of supporting evidence, such as:

  • laboratory test reports
  • material safety data
  • supplier compliance documentation
  • risk assessments
  • design and manufacturing records

These documents together form the technical file supporting the Declaration of Conformity.

Example: Supplier Material Testing

In many cases, material manufacturers themselves carry out EN71-3 testing for the materials they produce.

For example, some filament manufacturers provide EN71-3 documentation for their filaments. In those cases, the laboratory test report may be issued in the name of the filament manufacturer, rather than the individual businesses that later use that material to produce toys.

This type of supplier documentation can still form part of the evidence used by a toy manufacturer when compiling their technical file.

The responsibility for compliance still remains with the toy manufacturer, who must ensure that the materials used are appropriate for the intended toy and that all relevant safety requirements are met.

Key Point

Being responsible for toy safety does not automatically mean that every toy manufacturer must commission their own laboratory tests from scratch.

What matters is that the manufacturer can demonstrate compliance through reliable technical documentation and evidence, whether that evidence comes from their own testing or from verified supplier data. This includes ensuring that any test reports used are valid laboratory documents and have not been altered from the original reports issued by the testing laboratory.

Supporting UK Guidance

UK Government guidance on the Toys (Safety) Regulations explains manufacturer responsibilities and the requirement to maintain technical documentation:

https://www.gov.uk/government/publications/toys-safety-regulations-2011

Trading Standards guidance is also available via Business Companion:

https://www.businesscompanion.info/en/quick-guides/product-safety/toys

Should the Finished Printed Toy Always Be Tested?

Testing the finished product is certainly one valid approach, and some laboratories recommend it because it removes potential uncertainty about materials used in the final toy.

However, it is not the only way manufacturers demonstrate compliance with the UK Toy Safety Regulations 2011.

EN71-3 itself focuses on the migration of certain elements from toy materials and parts of toys, meaning the chemical behaviour of the material is what is being assessed.

Because of this, manufacturers often rely on material-level testing and representative sampling as part of their technical documentation when the same material is used across multiple products.

Considering the Manufacturing Process        

One argument sometimes raised is that the 3D printing process could introduce contamination from sources such as:

  • previously used filaments
  • printer components
  • nozzle materials
  • build plates
  • residues within the printer

While manufacturers should always maintain clean and controlled production processes, taking this argument to its logical extreme would lead to impractical conclusions.

For example, if the printing process itself invalidated material testing, it would logically mean that toys would need to be re-tested whenever a production variable changed, such as:

  • replacing a nozzle
  • changing a hotend
  • replacing PTFE tubing
  • installing a new build plate
  • switching between printers
  • printing a different filament beforehand

Requiring new laboratory testing for every such change would make ongoing compliance impractical for most small manufacturers.

Toy safety standards therefore assume normal, controlled manufacturing conditions, rather than requiring laboratory testing for every minor production variation.

Proportionate Compliance for Small Manufacturers

The Toy Safety Regulations require manufacturers to demonstrate that their products are safe, but they do not prescribe a single testing method for every situation.

Instead, manufacturers are expected to apply appropriate due diligence, supported by:

  • material safety evidence
  • supplier documentation
  • risk assessment
  • technical documentation
  • traceability and batch control

Testing the finished toy may be appropriate in some cases, particularly for complex products or where materials are uncertain.

In other cases, reliable material testing combined with documented risk assessment can form part of a manufacturer’s evidence of compliance.

The Practical Goal

The goal of the toy safety framework is to ensure that toys placed on the market are safe for children.

For small manufacturers using well-characterised materials and maintaining proper technical documentation, compliance is typically achieved through a combination of material evidence, risk assessment, and technical records, rather than repeated laboratory testing for every production change.

It is also important to remember that other parts of the EN71 standard apply to the finished toy itself. For example, EN71-1 assesses mechanical and physical hazards such as breakage, sharp edges, small parts and durability, and must be considered for the finished product rather than the raw material.

Supporting Guidance

UK Government guidance on toy safety responsibilities can be found here:

https://www.gov.uk/government/publications/toys-safety-regulations-2011

Trading Standards guidance is also available via Business Companion:

https://www.businesscompanion.info/en/quick-guides/product-safety/toys

 

How EN71-3 Defines What Is Tested

The scope of the EN 71-3 Toy Safety Standard specifies that it covers the migration of certain elements from toy materials and parts of toys.

This wording is important because the test assesses the chemical behaviour of the material itself, rather than the particular shape or design of a finished toy. During testing, samples are typically prepared and extracted in a way that allows laboratories to measure the migration of elements from the material.

Because of this, manufacturers often assess compliance at the material level, particularly where the same material is used across multiple products. In these cases, testing the material and maintaining appropriate documentation can form part of the technical evidence used to demonstrate compliance with the Toy Safety Regulations.

Do Colours Matter?

Yes — colour can matter when assessing chemical compliance under the EN 71-3 Toy Safety Standard.

Different colours in plastics are created using pigments or dyes, and some pigments can contain trace amounts of elements such as chromium, cobalt, copper, or other metals. Because EN71-3 sets migration limits for a number of elements, pigments used to colour plastics are one of the key factors considered when testing toy materials.

For this reason, colour is an important part of any manufacturer’s risk assessment and compliance documentation.

Pigment Chemistry

Plastic filaments used in 3D printing are typically made from a base polymer combined with colour pigments and additives.

Different colours may use different pigment formulations. For example:

  • blues may contain cobalt-based pigments
  • greens may include chromium compounds
  • reds and yellows may use iron oxide pigments
  • blacks are commonly produced using carbon black

Each pigment has its own chemical composition, which is why colour cannot always be ignored when assessing compliance.

However, pigments are not randomly formulated. Most pigments used in plastics belong to recognised chemical pigment families with known properties.

This allows manufacturers and laboratories to assess materials using representative pigment testing.

Representative Colour Testing

Because pigments belong to identifiable chemical families, testing a carefully selected group of colours can often represent the worst-case chemical profiles within a material range.

In practice, manufacturers commonly test colours that represent different pigment groups.

A typical example is testing colours similar to:

  • Cyan / Blue
  • Magenta / Red
  • Yellow
  • Black

These colours are often chosen because they represent distinct pigment chemistries that are widely used in plastics.

Testing representative colours helps ensure that the material system used in production meets the migration limits defined in EN71-3, without requiring separate testing of every individual colour variation.

This type of approach is common across many industries where materials share the same base formulation but differ in colour.

When Additional Testing May Be Needed

While representative colour testing can cover many standard solid colours, some filaments include additional materials or additives that may change the chemical composition of the plastic.

Examples include filaments containing:

  • glitter or sparkle particles
  • metallic flakes
  • glow-in-the-dark pigments
  • wood or mineral fillers
  • carbon fibre or other reinforcement fibres
  • colour-shifting or multicolour effects
  • transparent or translucent additives

These materials introduce additional substances into the plastic formulation, which may affect chemical migration behaviour.

Because of this, filaments with special additives are often treated as distinct materials and may require separate testing to demonstrate compliance.

Assessing Colour in Practice

Manufacturers producing toys should therefore consider colour as part of their overall material safety assessment.

This may involve:

  • reviewing supplier documentation for pigments and additives
  • using representative colour testing where appropriate
  • identifying materials that require separate testing due to added components

The aim is to ensure that the materials used in toys remain within the migration limits set by EN71-3 while maintaining a proportionate and practical approach to compliance.

Key Point

Colour matters because pigments can introduce different chemical elements into plastics.

However, the focus of EN71-3 remains the chemical behaviour of the material, and manufacturers typically assess colour through representative pigment testing and material risk assessment, while recognising that specialty filaments with additional additives may require separate evaluation.

 

Due Diligence for Small Manufacturers

Manufacturers producing toys using 3D printing should therefore ensure that their production processes are controlled and consistent.

Examples of good practice include:

  • using dedicated printers for toy production where possible
  • keeping printers clean and maintained
  • avoiding cross-contamination from incompatible materials
  • maintaining records of materials and production batches
  • including manufacturing processes within the product risk assessment

These measures help demonstrate due diligence, which is an important concept in product safety regulation.

The Practical Objective

The objective of EN71-3 testing and the Toy Safety Regulations is to ensure that toy materials do not release harmful levels of restricted elements during normal use.

For manufacturers using well-characterised materials and maintaining controlled production processes, compliance is typically demonstrated through a combination of:

  • material testing
  • technical documentation
  • risk assessment
  • production traceability

rather than repeated laboratory testing for every minor production change.

Supporting UK Guidance

UK Government guidance on the Toys (Safety) Regulations explains manufacturer responsibilities and technical documentation requirements:

https://www.gov.uk/government/publications/toys-safety-regulations-2011

Trading Standards guidance for businesses can also be found via Business Companion:

https://www.businesscompanion.info/en/quick-guides/product-safety/toys

Why Different Advice Exists

Many small manufacturers researching toy safety requirements encounter different advice from different sources. This can understandably create confusion, particularly for businesses trying to do the right thing and ensure their products are compliant.

There are several reasons why this happens.                   

Differences Between Legal Requirements and Best Practice

The first source of confusion is the difference between legal requirements and recommended best practice.

The UK Toy Safety Regulations 2011 set out the legal obligations for toys placed on the market in Great Britain. These regulations require manufacturers to ensure toys meet the essential safety requirements, carry out a safety assessment, maintain technical documentation, and issue a Declaration of Conformity.

However, the regulations do not prescribe a single testing method for every situation.

As a result, manufacturers may demonstrate compliance using different forms of evidence, such as:

  • material testing
  • supplier documentation
  • risk assessments
  • finished product testing

Different compliance strategies may therefore still satisfy the regulatory requirements.

Conservative Advice from Testing Laboratories

Testing laboratories often recommend the most cautious approach possible.

For example, laboratories may advise testing the finished product in order to remove uncertainty about materials used in the final toy.

This is understandable, as laboratories are responsible for providing accurate testing results and may recommend approaches that provide the strongest possible evidence of compliance.

However, these recommendations may go beyond the minimum requirements set out in legislation.

Guidance from Individual Trading Standards Officers

Manufacturers sometimes receive advice from local Trading Standards officers when seeking clarification on compliance.

While Trading Standards provide valuable guidance, it is important to remember that individual officers may provide advice based on:

  • the specific product being discussed
  • local enforcement priorities
  • their interpretation of the regulations
  • a cautious approach to risk management

Because of this, advice received in one situation may not always apply identically to every manufacturing scenario.

It is also important to remember that 3D printing is relatively new for the small business market, compared to crafts such as crochet or soft toy making, so there is less expertise available to tap into to gain consistent advice and approaches.

The Importance of Understanding the Framework

Ultimately, toy safety compliance is based on a framework that combines:

  • legislation
  • recognised standards
  • risk assessment
  • technical documentation

Understanding how these elements work together helps manufacturers make informed decisions about how best to demonstrate compliance.

For businesses producing 3D printed toys, taking the time to understand the underlying regulatory framework can help avoid confusion and ensure that safety requirements are met in a practical and proportionate way.

What the legislation actually requires

Regulation 5 and Schedule 2 of the Toy (Safety) Regulations 2011 state that toys, including the chemicals they contain, must not jeopardise the safety or health of users when used as intended or in a foreseeable way.

The General Product Safety Regulations 2005 also require that producers must not place products on the market unless they are safe.

 

In practice, businesses demonstrate that their products are safe by taking reasonable and proportionate steps to assess risks and document compliance.

Due Diligence and “Reasonable Steps”

UK product safety law recognises that manufacturers must take reasonable steps to ensure the products they place on the market are safe. This concept is often referred to as due diligence.

In practice, due diligence means being able to demonstrate that a business has taken appropriate and responsible measures to ensure product safety. This may include actions such as carrying out relevant testing (for example EN71-1, EN71-2 and EN71-3), maintaining a technical file, performing a safety risk assessment, keeping traceability records, and ensuring materials used in the product have appropriate compliance documentation.

If a safety issue were ever investigated by regulators, the key question would typically be whether the manufacturer could show they had taken all reasonable steps to ensure the product was safe before placing it on the market.

Maintaining clear documentation and evidence of these steps is therefore an important part of demonstrating compliance with the UK Toy Safety Regulations 2011 and wider UK product safety requirements.

What 3D Printing Businesses Should Focus On

For businesses producing 3D printed toys, compliance with the UK Toy Safety Regulations 2011 is about demonstrating that the product placed on the market is safe for children.

Rather than focusing on a single test or certificate, manufacturers should build a complete technical file that demonstrates due diligence and product safety.

This documentation forms the foundation of toy safety compliance.

1. Evidence of Material Safety

Manufacturers should ensure that the materials used in their toys meet the chemical safety requirements of the EN 71-3 Toy Safety Standard.

Evidence may include:

  • laboratory test reports
  • supplier documentation
  • material compliance certificates
  • safety data sheets

This evidence should relate to the materials that are accessible to children when the toy is used normally.

2. A Product Safety Risk Assessment

Manufacturers must carry out a safety assessment of the toy before it is placed on the market.

This should consider potential hazards including:

  • mechanical hazards (breakage, small parts)
  • sharp edges or points
  • flammability
  • chemical safety
  • foreseeable misuse by children

The risk assessment forms an important part of the toy’s technical documentation.

3. A Complete Technical File

The Toy Safety Regulations require manufacturers to maintain technical documentation that demonstrates compliance.

A typical technical file may include:

  • product description and photographs
  • material specifications
  • EN71 test evidence
  • safety assessment
  • manufacturing records
  • traceability information

This file must be kept available for inspection by authorities such as Trading Standards.

4. Declaration of Conformity

Manufacturers must produce a Declaration of Conformity confirming that the toy meets the relevant safety requirements.

This document identifies:

  • the manufacturer
  • the product
  • the regulations and standards applied
  • the responsible person issuing the declaration

The Declaration of Conformity is a formal statement that the toy complies with the regulatory framework.

5. UKCA Marking and Traceability

Once compliance has been demonstrated, the toy must carry the appropriate marking.

In Great Britain, this is typically the UKCA marking, which indicates that the manufacturer has assessed the toy against the relevant safety requirements.

Manufacturers must also ensure appropriate traceability, such as:

  • product identification
  • manufacturer contact details
  • batch or production information where appropriate

These measures help authorities trace products if a safety issue arises.

Supporting UK Guidance

UK Government guidance explaining the Toys (Safety) Regulations is available here:

https://www.gov.uk/government/publications/toys-safety-regulations-2011

Trading Standards guidance for businesses can be found via Business Companion:

https://www.businesscompanion.info/en/quick-guides/product-safety/toys

Final Thoughts

Understanding toy safety requirements can feel complex, particularly for small businesses entering the world of 3D printed toys. The regulatory framework combines legislation, standards, technical documentation, and risk assessment, which can sometimes lead to confusion when advice from different sources appears to conflict.

The key point is that the UK Toy Safety Regulations 2011 require manufacturers to ensure toys are safe and to demonstrate this through appropriate evidence and documentation. Standards such as EN 71-3 Toy Safety Standard provide recognised methods for assessing specific risks, including the migration of certain elements from toy materials.

For manufacturers using 3D printing technologies, compliance typically involves a structured approach that includes:

·        understanding the materials being used

·        maintaining clear technical documentation

·        carrying out appropriate safety assessments

·        ensuring traceability and responsible manufacturing practices

Discussions within the maker community about compliance are valuable, and it is encouraging to see more businesses taking toy safety seriously.

As people involved in the 3D printing community ourselves, toy safety and clear information are extremely important to us.

 

By focusing on accurate information and a clear understanding of the regulatory framework, manufacturers can make informed decisions that protect both their customers and their businesses.

Ultimately, the goal of the toy safety regulations is straightforward: ensuring that toys placed on the market are safe for children to use.

One More Important Point

If you receive advice from your local Trading Standards officer that differs from the information discussed here, the best approach is to ask for the advice in writing.

Regulatory advice can sometimes vary depending on factors such as the specific product, the materials used, or the circumstances being considered.

If advice is given verbally, it can be helpful to follow up with an email confirming your understanding and asking for clarification where needed.

You may also wish to ask whether the advice is based on:

·        a specific section of the Toy Safety Regulations

·        official UK Government guidance

·        a particular designated standard

·        or local enforcement guidance

For example, you might write:

“Thank you for your advice during our discussion. To ensure we correctly understand the requirements, could you please confirm whether this guidance is based on a specific section of the Toy Safety Regulations, government guidance, or a designated standard?”

This helps ensure that both the business and the regulator are working from the same interpretation of the regulatory framework.

Keeping written records of compliance discussions can also help demonstrate due diligence if questions arise later about how safety decisions were made.

Ultimately, the aim for both manufacturers and regulators is the same: ensuring that toys placed on the market are safe and compliant with the law.

Our Commitment

At 3D CertHub UK we want to help you to make sure you have the knowledge, information and EN71-3 certificates to be able to ensure that your products can be appropriately tested and sold knowing they are safe for children. We are committed to ensuring that every certificate we supply has a full audit trail, has full ownership rights by us to be able to sell this to you, and that we can support any investigation into the provenance or rights to those certificates. This enables you to provide the information to Trading Standards with full confidence. We are committed to supporting you with discussions with, or feedback from, Trading Standards or other bodies, to understand any alternative interpretations of the regulations or their implementation. We are also committed in actively discussing our approach directly with Trading Standards to agree any commonality or advice which can be published and shared.

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