Preliminary Provisions — California Penal Code — Definitions — "Immediate family member" defined Date: 15 Sep 2016 TEXT PDF Current through the 2016 Legislative Session As used in this part, "immediate family member" means either of the following relationships: (a) Parent and child. (b) Grandparent and grandchild. Ca. Pen. Code § 16720 Added by Stats 2010 ch 711 (SB 1080),s 6, eff. 1/1/2011, op. 1/1/2012.