Concessioni del Tirreno and the operators of the services provided in the service appurtenances, to the extent of their respective competences, guarantee, in compliance with the regulatory provisions on accessibility and the Service Charter, as well as consistent with the information provided to the public, the full usability to the PRM of the services available in the service areas. The following provides information regarding the possible unavailability of infrastructure/equipment in the service areas such as to limit the full accessibility and usability to PMR of the services available in the service areas: