Without prejudice to Union rules on State aid and in accordance with Articles 93, 107 and 108 TFEU, a railway undertaking shall be adequately insured or have adequate guarantees under market conditions for cover, in accordance with national and international law, of its liabilities in the event of accidents, in particular in respect of passengers, luggage, freight, mail and third parties. Notwithstanding this obligation, the specificities and the risk-profile of different types of services, in particular of railway operations for cultural or heritage purposes, may be taken into account.