‘product group’ means a set of products that serve similar purposes and are similar in terms of use, or have similar functional properties, and are similar in terms of consumer perception;

‘operator’ means any producer, manufacturer, importer, service provider, wholesaler or retailer;

‘environmental impact’ means any change to the environment resulting wholly or partially from a product during its life cycle;

‘environmental performance’ means the result of a manufacturer's management of those characteristics of a product that cause environmental impact;

‘verification’ means a procedure to certify that a product complies with specified EU Ecolabel criteria.