Cal. Civil Code § 1438 : Interpretation Of Obligations — California Civil Code — Obligations — Conditional Obligations — Condition subsequent Date: 14 Sep 2016 TEXT PDF Current through the 2016 Legislative Session A condition subsequent is one referring to a future event, upon the happening of which the obligation becomes no longer binding upon the other party, if he chooses to avail himself of the condition. Ca. Civ. Code § 1438