Legal archiving and long-term preservation of product data: Practical guide for manufacturers

Every day, industrial companies generate and manipulate an increasing volume of product data: CAD files, nomenclature (BOM), data from PDM/PLM systems, manufacturing records, quality documents, quality documents, production instructions, test reports, etc. This information is not only useful in the short term for designing and manufacturing: it often needs to be retained for long periods of time, sometimes several decades.

This preservation meets multiple needs: maintenance of products in service, management of spare parts, regulatory audits, contractual compliance, traceability, or even manufacturer responsibility in the event of a dispute. The legal archiving of product data cannot therefore be improvised. It is part of a structured approach, at the crossroads of regulatory requirements, technical constraints and digital sustainability issues.

This guide aims to clarify legal archiving obligations in the industry, to explain why the long-term preservation of product data is specific, and to provide concrete best practices for setting up a compliant and sustainable archiving system.

What are the legal archiving obligations in the industry?

Variable retention periods depending on the nature of the documents

There is no single retention period applicable to all product data. The obligations depend on:

• The nature of the document (technical, quality, contractual, fiscal);
• From the industrial sector;
• And risks associated with the product.

For information purposes, in France:

• Technical documents and manufacturing records are often kept for a minimum of 10 years, in particular to cover the manufacturer's liability.
• In certain regulated sectors (aeronautics, railways, defense, medical devices), durations can reach 30 years, or even more, sometimes for the entire life of the product.
• Tax or contractual documents follow their own rules (often between 6 and 10 years).

It is therefore essential to reason by product data type and not by tool or service.

General obligations to be respected

Beyond the durations, several principles apply to industrial archiving:

• Integrity of the documents: impossibility of modification not traced.
• Traceability : ability to prove origin, versions and evolutions.
• Accessibility over time : possibility of returning information in the event of audit, maintenance or litigation.
• Readability : preservation in formats that can be used over time.

These requirements apply to paper archives as well as to the electronic archiving of product data.

Why is “long life” special for product data?

Unlike other types of information, product data has long-term value. They are not only used to design and manufacture a product, but remain essential long after it is on the market, sometimes several decades later.

Plans, CAD files, bills of materials, manufacturing records, or quality data may be required to provide maintenance, produce spare parts, analyze an incident, or respond to an audit request. In some industrial sectors, manufacturer responsibility extends over a very long period of time, making access to this data essential, even long after production has stopped.

In addition to this requirement, there is a challenge specific to digital technology: technological obsolescence. Formats are evolving, software is disappearing, storage media are becoming incompatible. Retaining data without guaranteeing its readability and usability is therefore of little value. The long-term preservation of product data involves anticipating these evolutions, managing format migrations and relying on practices that guarantee the sustainability and traceability of information over time.

Standards and best practices for the long-term archiving of product data

The reference standards in electronic archiving

To structure compliant archiving, several standards and references need to be known:

• NF Z42-013/ISO 14641 : requirements for electronic archiving systems (EAS) with probative value.
• ISO 15489 : document and information management.
• Specific sectoral standards (aeronautics, medical, defense).

These standards define the principles of security, integrity, traceability and preservation over time.

Electronic archiving with probative value

One electronic archiving system (SAE) makes it possible to guarantee the integrity of documents (fingerprints, sealing), the traceability of accesses and actions and the reliable retrieval of archived data.

For critical product data, especially in a regulated context, archiving with evidential value is a key element of compliance.

Managing digital sustainability

Sustainable archiving is based on:

• the choice of open and documented formats,
• the regular migration of data to durable media and formats,
• a technological watch to anticipate changes.

Archiving is not a one-time act, but a process over time.

Steps to implement a product data archiving policy

1. Map the product data to be retained

Identify:

• Technical documents;
• Data from CAD/PDM/PLM systems;
• manufacturing records;
• Quality and compliance data.

Not all data has the same value or the same shelf life.

2. Define appropriate retention periods

For each category:

• Analyze legal obligations;
• Take into account contractual and sectoral requirements;
• Identify critical data (security, compliance, responsibility).

3. Choosing the right archiving system

As required:

• Paper archiving;
• Electronic archiving;
• Or mixed solution.

In industrial environments, a integration between PLM, EDM and SAE is often the key to ensuring consistency and continuity.

4. Implement archiving processes

Define indexing and metadata rules, archiving workflows, access rights and security levels, and retrieval procedures.

5. Ensuring sustainability over time

Implement migration strategies, regular integrity checks, and clear documentation of formats and tools.

6. Audit and manage compliance

Finally, it is essential to:

• Audit the device regularly;
• Verify data recovery capacity;
• Manage the controlled disposal of expired archives.

Challenges, benefits and risks in the event of non-compliance

Product data archiving is not limited to a regulatory obligation: it plays a central role in the control of industrial risks and the ability of a company to plan for the long term. A well-structured archiving policy makes it possible above all to guarantee compliance, but also to secure the activity and know-how.

In terms of benefits, controlled archiving ensures complete traceability of the product, from its design to its decommissioning. It facilitates audits, secures manufacturer liability, and allows critical information to be quickly retrieved when needed, whether for maintenance, customer support or incident analysis. It also contributes to the preservation of technical and industrial history, which is often valuable in the long term.

On the other hand, insufficient or non-compliant archiving management exposes the company to major risks. The loss or inaccessibility of product data can lead to non-compliance during checks, difficulties in demonstrating product compliance, and even costly litigation. In addition, there are high indirect costs associated with rebuilding information, business interruptions, and a deterioration in the trust of customers and partners.

Legal archiving and the long-term preservation of product data should no longer be perceived as an administrative constraint. They are a strategic component of product life cycle management, just like design, production or quality.

By structuring a clear archiving policy, based on standards, adapted tools and integration with PLM and EDM systems, manufacturers secure their compliance, their know-how and their ability to last.

FAQS

How long should technical product data be retained?

The shelf life depends on the sector of activity, the type of product or part, as well as the applicable legal, contractual or normative obligations. In industry, certain technical data or manufacturing records must be kept for 10 years, 30 years, or even longer, in particular to cover liability and traceability issues.

Do digital documents have to be archived differently than paper documents?

Yes. Digital documents require specific guarantees in terms of integrity, traceability and readability over time.

Can manufacturing records be destroyed after a few years?

The destruction of manufacturing records must be strictly supervised. If legal, regulatory or contractual obligations require long-term retention, premature destruction exposes the company to the risks of non-compliance, litigation, or loss of critical information.

How do you ensure the sustainability of product data for 30 years or more?

This involves setting up a structured archiving policy, based on digital tools that comply with standards, the use of sustainable formats, the planning of data migrations and the maintenance of secure and traceable access over the long term.