Glossary
Market surveillance
Market surveillance is the ongoing enforcement activity national authorities carry out after a product is already on sale: checking labelling, requesting technical files and declarations of conformity, testing samples, and ordering corrective action or withdrawal for non-compliant products.
Why it matters
Compliance is not a one-time gate you pass before launch. Market surveillance authorities can act at any point in a product's life, which is why keeping technical documentation current and accessible matters as much after launch as before it.