4 Mandatory and non-mandatory provisions.E+W+N.I.
(1)The mandatory provisions of this Part are listed in Schedule 1 and have effect notwithstanding any agreement to the contrary.
(2)The other provisions of this Part (the “non-mandatory provisions”) allow the parties to make their own arrangements by agreement but provide rules which apply in the absence of such agreement.
(3)The parties may make such arrangements by agreeing to the application of institutional rules or providing any other means by which a matter may be decided.
(4)It is immaterial whether or not the law applicable to the parties’ agreement is the law of England and Wales or, as the case may be, Northern Ireland.
(5)The choice of a law other than the law of England and Wales or Northern Ireland as the applicable law in respect of a matter provided for by a non-mandatory provision of this Part is equivalent to an agreement making provision about that matter.
For this purpose an applicable law determined in accordance with the parties’ agreement, or which is objectively determined in the absence of any express or implied choice, shall be treated as chosen by the parties.