1. Passport notifications submitted under this Regulation shall comply with the following requirements:
they shall be in writing in a language accepted by the competent authorities of the home Member State and in a language accepted by the competent authorities of the host Member State, or in any Union language accepted by both the competent authorities of the home and host Member States;
they shall be transmitted by post, or by electronic means where these are accepted by the relevant competent authorities.
2. The competent authorities shall make the following information publicly available:
the languages accepted in accordance with paragraph 1(a);
the address to which passport notifications are to be sent where submitted by post;
any electronic means by which passport notifications may be submitted and any relevant contact details.