Article 22 — Choice of law

1. A person may choose as the law to govern his succession as a whole the law of the State whose nationality he possesses at the time of making the choice or at the time of death.

   A person possessing multiple nationalities may choose the law of any of the States whose nationality he possesses at the time of making the choice or at the time of death.

2. The choice shall be made expressly in a declaration in the form of a disposition of property upon death or shall be demonstrated by the terms of such a disposition.
3. The substantive validity of the act whereby the choice of law was made shall be governed by the chosen law.
4. Any modification or revocation of the choice of law shall meet the requirements as to form for the modification or revocation of a disposition of property upon death.