Open Tour Paris, an RATP Group subsidiary, leader of the hop-on hop-off sightseeing buses in Paris, is entering into the field of NGV, after having added six 100% electric buses to its fleet. This world first was displayed at the Busworld exhibition in Brussels on 17 October. The first six NGV buses are already running on network routes. By 2024, 100% of the Open Tour Paris bus fleet will be clean.