Delegation of each Member participating in any session of the INC consists of a head of delegation and such alternate representatives and advisers as may be required (rule 6 of the draft rules of procedure provisionally applied to the work of the INC, the). For each INC session, Members are invited to nominate their national delegation by communicating the names of the Head of their delegation as well as the names of alternate representatives and advisers, through a Note Verbale or official letter.