50 ✔✔ Information on the daily subsistence allowance (DSA) paid to members for their time attending the session; ✔✔ Information on supplementary health insurance while in Geneva. Two months before each session, the secretariat sends an e-mail to all members with information relating to the upcoming session, including the programme of work, other documentation, and reminders about travel and hotel arrangements. Members make their own travel arrangements and hotel bookings. To this end, members should contact CWT or the designated agent about six weeks before the session, but no later than three weeks before their travel date. The secretariat provides members with contact information for the travel agent. The United Nations pays for the most economical and direct route in business class. If members want a different route or ticket, they need to bear any additional costs themselves. The Secretariat of the United Nations has implemented an advance purchase policy whereby all official travel requests purchased by the United Nations are ticketed at least 16 calendar days prior to departure. Members should nevertheless avoid making reservations more than six weeks in advance, as the authorization to pay for the ticket will not be ready in time and the booking may lapse. Members are responsible for making any changes to their itinerary and should provide the secretariat with an updated itinerary as soon as possible after making the change. It is important to note that it is the responsibility of the members to request Schengen visas to enter Switzerland—or visas for any other country in the case of inquiries or visits. Members should ensure that they put in their visa requests well before the session. B. During the session On the first day of the first session, new or newly re-elected members should obtain a badge so as to be able to enter the United Nations premises. The secretariat sends out application forms to members before the session; however, members must go in person to the Pregny Gate at the Palais des Nations in Geneva to obtain their badges. As many United Nations meetings start on Mondays and there may be a queue, members should present themselves at least 90 minutes early. This should give them enough time not only for the administrative arrangements but also to travel from Palais des Nations to Palais Wilson, where most treaty body sessions take place. The badge is valid for four years. At their first session, members receive a United Nations certificate to certify that they are treaty body members. The certificate does not provide members with any privileges or immunities beyond those that they have automatically, as outlined above in chapter III, section B. The certificate is renewed every year.