I, [name and title of the Head of State, Head of Government or Minister for Foreign Affairs],
HEREBY AUTHORISE [name and title] to [sign *, ratify, denounce, effect the following declaration in respect of, etc.] the [title and date of treaty, convention, agreement, etc.] on behalf of the Government of [name of State].
Done at [place] on [date].
_____________________
* Subject to the provisions of the treaty, one of the following alternatives is to be chosen:
[subject to ratification] or [without reservation as to ratification].
Reservations made upon signature must be authorised by the full powers granted to the signatory.