PLD substantial modification checker

Manufacturer-treatment review after a change

See whether a later change could call for manufacturer treatment, without deciding liability.

Saved answers stay inside these labels: kind_band, service_band, commercial_band, foss_band, movement_band, timing_band, role_band, base_band, found_band, soft_band, update_band, learn_band, integrate_band, safety_band, modified_band, control_band, purpose_band, hazard_band, risk_band, foresaw_band, version_band, design_band, change_band, test_band, defect_band, file_band, trace_band, keep_band, owner_band, handling_band, stock_band, date_band, map_band, digital_band, evidence_band, nation_band, plan_band

Was the product modified after placement or service?Was the change under the original manufacturer's control?Did performance, purpose, or type change?Did the change create a new hazard?Did the risk level increase?Did the manufacturer foresee the change?

What this checks

A person who substantially modifies a product outside the original manufacturer's control, then makes it available or puts it into service, may be treated as a manufacturer for liability purposes. This checker looks for a change of performance, purpose, or type, a new hazard, or a higher risk. If the original manufacturer stayed in control and there is no such signal, there is no material modification signal. An unknown fact stays with a specialist review. Nothing here decides liability.

Who should use this

Repair, refurbishment, and integration teams that change a product after it is placed on the market.

How results work

No material signal, a substantial modification review, a potential manufacturer-treatment review, or a specialist review. Never a final liability label.

Dates used in this screen

Member States must transpose Directive (EU) 2024/2853 by 2026-12-09. The new liability framework is for products placed on the market or put into service after 2026-12-08. Earlier products remain with the previous framework. National transposition is not filled in here.

Official sources

Use the current text of Directive (EU) 2024/2853, the 2026 corrigendum, the Commission pages on defective-product liability, and national transposition information when it is published. The older product liability directive remains the prior framework.

Limitations

Foreseeing a change does not clear the screen, and the absence of a signal is not a defence.

How to read the screen

Start with known facts

Say whether the product was changed after it was placed or put into service, and who controlled that change.

Leave gaps open

Record a change of purpose, a new hazard, or a higher risk as separate yes or no facts.

Readiness is not a judgment

If any of those facts is unknown, stop at a specialist review rather than guessing a pathway.

Questions

Does machinery safety get decided here?

No. Use the machinery substantial-modification tool when the question is machinery safety, not product-liability readiness.

Can this say someone became the manufacturer?

No. The strongest label is a potential manufacturer-treatment review. It is not a liability finding.

Does this store documents or names?

No. Only the selected categories and the ruleset version can be saved.

Where do national rules fit?

If implementation in a Member State matters and is not verified, the result stays a national-law check. No national date is invented.