EN 15085 Maintenance Certification

Railway Overhaul Requirements

Railway Repair Certification

EN 15085 Certification for Railway Maintenance Companies: Does Your Repair & Overhaul Unit Need Compliance & Top 10 Areas to Check Before Applying Certification?

By First Welding Certification Technical Editorial Team

8 Min Read

26 Sep 2026

Is Your Railway Maintenance Unit Ready?

Maintenance Scope

EN 15085 Requirements

Welding Controls

Certification Scope

When a railway vehicle needs repair welding is not just something done in a workshop. A repaired weld can impact the safety, performance and how long a railway vehicle or part will last. So when does a repair or overhaul job on a train fall under EN 15085? This is a question for railway maintenance companies, repair shops, overhaul units, railway operators and any company that does welding during maintenance.

The EN 15085 series applies to welding on railway vehicles and components during both manufacturing and maintenance. Specifically EN 15085-6:2022 sets out quality, design and production requirements for welding that happens during maintenance work. But there’s a point: not every maintenance task automatically requires EN 15085 certification. The actual job, who is responsible for the welding what parts are involved and the scope of certification must all be taken into account.

This article looks at where EN 15085 fits in railway maintenance, repair and overhaul activities.

What Is EN 15085 Maintenance Welding?

Railway maintenance includes different kinds of work. From checking parts and replacing them to full refurbishment and repairs.

When welding is done on railway vehicles or welded components during maintenance that welding activity falls under the EN 15085 framework.

EN 15085-6:2022 has this title: Railway applications. Welding of railway vehicles and components. Part 6: Maintenance welding requirements. It lays out the rules for welding carried out during maintenance or upkeep of railway vehicles and components.

The current European standard connects maintenance welding with requirements for:

Welding coordination
Welding procedures
personnel who do the welding
Inspection and testing
Technical documentation
Repair records
Traceability
Quality control

The exact rules depend on the component, the type of welding its classification and the certification scope.

Does EN 15085 Apply to Railway Repair Companies?

Yes it can.

If a company fixes welded railway vehicles or components using welding then the work may fall under the EN 15085 maintenance category.

The ECWRV technical guideline describes M. Maintenance as an activity where a manufacturer repairs welded railway vehicles and components by welding including testing. It includes inspections, repairs, overhauls and refurbishment.

So railway maintenance companies should not focus on the word “maintenance.”

They need to ask: What exactly is being done to the vehicle or part and is welding involved?

For example a company might carry out:

Repair welding
Structural repairs
Component refurbishment
Welding during overhaul
Modifications that involve welding
Inspections linked to repair work
Testing after the repair

All of these activities must be checked against the EN 15085 requirements and the companys own certification scope.

What Is the "M" Maintenance Activity?

Under the ECWRV interpretation of EN 15085 manufacturers have four types of activities: D, P, M and S.

The important one, for this discussion is:

M. Maintenance

The ECWRV guideline defines M as the activity where a manufacturer repairs welded railway vehicles and components by welding including testing.

It covers:

Inspection → Repair → Overhaul → Refurbishment

This applies to companies that run:

Railway repair workshops
Periodical overhaul units
Rolling-stock maintenance facilities
Railway vehicle refurbishment facilities
Railway component repair facilities
Railway operators doing welding during maintenance
Specialist railway repair companies

The EN 15085 certification scope must clearly state what activities and what products are covered.

Which Railway Repair & Overhaul Activities Can Fall Under EN 15085?

Not every activity performed inside a railway workshop has the same welding relevance.

Maintenance activity	Welding involved?	EN 15085 relevance
Cleaning and servicing	No	Generally not a welding activity
Visual inspection	No	Depends on overall scope
Component replacement	Not necessarily	Depends on activity
Structural repair	Yes	Highly relevant
Component repair by welding	Yes	Highly relevant
Welded component refurbishment	Yes	Relevant
Overhaul involving welding	Yes	Relevant
Modification involving welding	Yes	Relevant

For example replacing a component may not need welding. However fixing a damaged welded structure or changing a welded railway component can bring welding requirements. Therefore the first step is to define the maintenance and welding activities.

EN 15085-6:2022 and the Latest EN 15085 Requirements

For companies researching the EN 15085 latest edition 2026 it is important to distinguish the parts of the standard.

The current Part 2 reference is EN 15085-2:2020+A2:2025. It addresses classification levels, manufacturer activities and conformity requirements.

For maintenance welding EN 15085-6:2022 specifically addresses maintenance welding requirements.

Important areas for maintenance organizations include:

Welding coordination
Welding procedures
welding personnel
Inspection
Testing
NDT where applicable
Material identification
Traceability
Repair documentation

Rather than repeating the complete latest‑edition discussion in this article read: EN 15085 Latest Edition 2026: EN 15085-2:2025 Update for Indian & International Manufacturers

This allows the present article to focus specifically on railway maintenance, repair and overhaul.

Top 10 Areas to Check Before EN 15085 Maintenance Certification

Before an assessment a railway maintenance or overhaul company should review these ten areas:

1. Define the Maintenance Scope : Clearly identify repair, refurbishment, modification and overhaul activities.

2. Identify Railway Products : Determine which railway vehicles, components or welded assemblies are covered.

3. Identify Welding Processes : Document the welding processes used during maintenance.

4. Determine Applicable Classification : Establish the classification for the welded railway products and components.

5. Establish Welding Coordination : Confirm welding coordination responsibilities and competence.

6. Control WPS and WPQ : Ensure welding procedures and supporting qualifications are available.

7. Verify Welder Qualifications : Confirm that welding personnel are qualified for the work they perform.

8. Establish Inspection and NDT : Identify inspection, testing and NDT requirements.

9. Maintain Traceability : Connect materials, components, welding personnel, procedures and inspection records.

10. Verify Certification Scope : Ensure the documented certification scope reflects the companys maintenance activities.

For information, about classification see EN 15085 CL1, CL2 & CL3: Understanding Railway Welding Classification Levels.

Welding Coordination for Railway Maintenance Companies

Welding coordination plays a role in ensuring controlled welding within railway maintenance operations. Even if a maintenance company has welders welding coordination covers more than just the welding itself. It includes managing critical aspects such as:

Welding procedures
Welding personnel
Welding consumables
Welding parameters
Inspection
Non-destructive testing (NDT)
Repair procedures
Technical documentation
Traceability

The correct level of welding coordinator needed depends on a mix of classification and the type of work being done not just classification alone.

For an understanding refer to: Which EN 15085 Welding Coordinator Level Does Your Railway Manufacturing Company Need?

WPS, WPQR, Welder Qualification and Repair Records

Repair welding must be carried out using controlled welding procedures that match the work being done. The scope of the project determines which documents are essential. Important records may include:

Welding Procedure Specification (WPS)
Welding Procedure Qualification Record (WPQR)
Welder qualification records
Material identification
Welding records
Inspection reports
NDT reports
Repair records
inspection documentation

A clear traceability path looks like this:

Material → Component → WPS/WPQR → Welder → Weld → Inspection/NDT → Final Record

This chain helps show that repair welding was done under controlled and documented conditions.

For a view suitable for audits see: EN 15085 Certification Audit Checklist 2026: Documents, CP/CT Classes & Technical Requirements

EN 15085 Certification in India and Global Railway Supply Chains

Companies in India looking to get EN 15085 certification often face requirements from railway projects, customer demands, OEM rules, international contracts or supplier qualification needs. Indian firms supplying railway clients may also face EN 15085 requirements as part of global supply chains.

Each project and each customer can have different expectations. So the first step should be to ask:

What do we repair?
What do we weld?
Which components are involved?
What classification applies?
What certification scope is needed?

This way of thinking is more useful than picking a certification level before knowing what work the company actually does. For international railway companies the certification scope must match the real work the company performs.

What Does EN 15085 Certification Cost for Railway Maintenance Companies?

A frequent question is:

What is the EN 15085 certification cost in India?

There is no one-size-fits-all price for certification. The cost varies based on factors including:

Certification scope
Classification level
Welding processes used
Products and components involved
Number of locations
Number of personnel
Documentation needs
Inspection and NDT requirements
Assessment demands

For a full breakdown of pricing factors see: EN 15085 Certification Cost in India: What Determines the Price?

The most important first step is clearly defining the scope of maintenance welding before estimating any certification cost.

EN 15085 Maintenance Certification Checklist

Use this checklist as a starting point before any assessment:

☐ Maintenance and repair scope’s clearly defined
☐ Railway vehicles and components are identified
☐ Welding processes being used are listed
☐ Applicable classification is established
☐ Welding coordinator roles and responsibilities are set
☐ Welding Procedure Specification (WPS) is available
☐ Welding Procedure Qualification Record (WPQR) is available where needed
☐ Welder qualifications have been verified
☐ Inspection requirements are defined
☐ NDT requirements are identified
☐ Material and weld traceability is maintained
☐ Repair and overhaul records are kept
☐ Certification scope matches actual activities

A more detailed audit-focused version is available, in First Welding Certification Pvt Ltd article: EN 15085 Certification Audit Checklist 2026

Frequently Asked Questions

Does EN 15085 apply to railway maintenance companies?

Yes. The EN 15085 rules cover maintenance welding. The letter M stands for Maintenance, which means repairing railway vehicles and parts by welding including testing.

What is EN 15085-6:2022?

EN 15085-6:2022 is a part of the standards that covers the rules for welding done during maintenance work on railway vehicles and parts..

What is the latest EN 15085 edition in 2026?

For Part 2 the latest version is EN 15085-2:2020+A2:2025. For details about the changes check the EN 15085 Latest Edition 2026.

Does railway overhaul need EN 15085 certification?

If the overhaul work includes welding on railway vehicles or parts then the EN 15085 rules for maintenance welding must be considered. The right certification must be checked.

How much does EN 15085 certification cost in India?

There is no fixed price for this. The cost depends on things, like how big the work is, what type of welding is done where it is done who is working on it and what documents are needed.

Conclusion

For a company that works on trains the question isn’t about fixing the vehicles. The main question is:

Does the work you do—like repairing, changing, updating or rebuilding parts of the train—include welding on the train or its parts?

If it does then you need to check the EN 15085 rules for welding in maintenance.

A good way to handle it is:

First decide what you are going to do → Find all the welding work you will do → Figure out how to classify the work → Set up a plan for welding → Control the welding procedures → Check the people who do the welding → Plan inspections and tests → Keep track of everything → Write down all the repairs → Make sure the certification covers what you do.

For railway companies in India and, around the world knowing about M. Maintenance, EN 15085-6:2022 and the EN 15085-2:2020+A2:2025 rules can help you understand what certification you need.

When you do welding on trains the certification process starts with knowing what your workshop does—and making sure the written welding system matches the actual work you do.

EN 15085 Certification for Railway Maintenance & Repair Companies

Is your railway maintenance, repair or overhaul unit involved in welding railway vehicles or components? First Welding Certification Pvt Ltd (PRVÁ ZVÁRAČSKÁ, a.s.) provides certification for organizations seeking conformity with applicable EN 15085 requirements, including maintenance welding activities.

Define your maintenance scope, identify the applicable welding requirements and establish the certification scope relevant to your railway repair and overhaul operations.