1.Upon request, a railway undertaking, a ticket vendor or a tour operator shall provide disabled persons and persons with reduced mobility with information on the accessibility of rail services and on the access conditions of rolling stock in accordance with the access rules referred to in Article 19(1) and shall inform disabled persons and persons with reduced mobility about facilities on board.
2.When a railway undertaking, ticket vendor and/or tour operator exercises the derogation provided for in Article 19(2), it shall upon request inform in writing the disabled person or person with reduced mobility concerned of its reasons for doing so within five working days of the refusal to make the reservation or to issue the ticket or the imposition of the condition of being accompanied.