Choice of the applicable law
Article 22
1. The spouses or future spouses may agree to designate, or to change, the law applicable to their matrimonial property regime, provided that that law is one of the following: (a) the law of the State where the spouses or future spouses, or one of them, is habitually resident at the time the agreement is concluded; or (b) the law of a State of nationality of either spouse or future spouse at the time the agreement is concluded. 2. Unless the spouses agree otherwise, a change of the law applicable to the matrimonial property regime made during the marriage shall have prospective effect only. 3. Any retroactive change of the applicable law under paragraph 2 shall not adversely affect the rights of third parties deriving from that law.