Unlike Federal Rule Civil Procedure 26(e)(1) – (2), California law does not impose a continuing duty on a party to supplement their interrogatory or document responses.  Biles v. Exxon Mobil Corp. (2004) 124 CA 4th 1315.  Instead, the California Discovery Act has two statutes, C.C.P. §2030.070 and C.C.P. § 2031.050, that allow the propounding party to ask for updated information “bearing on answers already made” and “later acquired or discovered documents, tangible things, land or other property.”

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