Common use of Engagement of Third Parties Clause in Contracts

Engagement of Third Parties. 4.1 The supplier may engage third parties (e.g. subsuppliers, subcontractors) for the rendering of essential services and of services at the sites of the customer only with prior written consent of the customer. The supplier shall remain liable for the rendering of contractual services by the engaged third parties. 4.2 Substitution is excluded, subject to express agreements to the contrary. 4.3 The parties shall impose the obligations set out in clause 3 (deployment of staff), 5 (observation of health and safety standards, conditions of employment, equal treatment of sexes in relation to salary), 22 (confidentiality) and 23 (data protection and data security) on the engaged third parties (e.g. subsup- pliers, subcontractors, substitutes).