Section 1:

In case the future spouses agree in the marriage settlements that the regime of conjugal partnership gains shall govern their property relations during marriage, the provisions in this Chapter shall be of supplementary application.

The provisions of this Chapter shall also apply to conjugal partnerships of gains already established between spouses before the effectivity of this Code, without prejudice to vested rights already acquired in accordance with the Civil Code or other laws, as provided in Article 256.  (n)

Under the regime of conjugal partnership of gains, the husband and wife place in a common fund the proceeds, products, fruits and income from their separate properties and those acquired by either or both spouses through their efforts or by chance, and, upon dissolution of the marriage or of the partnership, the net gains or benefits obtained by either or both spouses shall be divided equally between them, unless otherwise agreed in the marriage settlements.  (142a)

The rules provided in Articles 88 and 89 shall also apply to conjugal partnership of gains.  (n)

The conjugal partnership shall be governed by the rules on the contract of partnership in all that is not in conflict with what is expressly determined in this Chapter or by the spouses in their marriage settlements.  (147a)