- Acts of disposition of the home and its household furnishings.

The Biscayan universal community of property provisions demark the assets and rights, burdens and debts within, and the acts of disposition that a spouse can make on his own.

- the utmost significant speciality is the nullity of all causa mortis and gratis acts of disposition on the Trunk Estate, which means a call to the Trunk Successors to acquire these goods.

- The Trunk Statute is enforceable to inter vivo deals before the decease, so instead of going into hotchpot after the testator's death as with the Forced Heirship, the Trunk Relative can sue the annulment of the gratis acts of disposition.