++++ 1. Freedom to provide services - Treaty provisions - Scope - Criterion for determination - Foreign element - Provider of services established in a Member State other than that where the services are provided (EEC Treaty, Arts 59 and 60) 2. Freedom to provide services - Restrictions - Prohibition (EEC Treaty, Arts 59 and 60) 3. Freedom to provide services - Restrictions justified in the general interest - Permissibility - Conditions (EEC Treaty, Arts 59 and 60) 4. Freedom to provide services - Tourist guides accompanying groups of tourists from another Member State - Requirement of a licence issued to holders of a diploma - Not permissible (EEC Treaty, Arts 59 and 60)