{"code":"CCP","codeName":"Code of Civil Procedure","section":"2034.630","citation":"Code Civ. Proc., § 2034.630","status":"in-force","lawOn":"2026-09-28","headings":[{"name":"PART 4. MISCELLANEOUS PROVISIONS [1855. - 2107.]","url":"https://blackletter.si/code-of-civil-procedure/part-4"},{"name":"TITLE 4. CIVIL DISCOVERY ACT [2016.010. - 2036.050.]","url":"https://blackletter.si/code-of-civil-procedure/part-4/title-4"},{"name":"CHAPTER 18. Simultaneous Exchange of Expert Witness Information [2034.010. - 2034.730.]","url":"https://blackletter.si/code-of-civil-procedure/part-4/title-4/chapter-18"},{"name":"ARTICLE 4. Motion To Augment or Amend Expert Witness List or Declaration [2034.610. - 2034.630.]","url":"https://blackletter.si/code-of-civil-procedure/part-4/title-4/chapter-18/article-4"}],"history":"Added by Stats. 2004, Ch. 182, Sec. 23.   Effective January 1, 2005.   Operative July 1, 2005, by Sec. 64 of Ch. 182.","effective":"2005-01-01","html":"<p>The court shall impose a monetary sanction under Chapter 7 (commencing with Section <a href=\"/ccp/2023.010\">2023.010</a>) against any party, person, or attorney who unsuccessfully makes or opposes a motion to augment or amend expert witness information, unless it finds that the one subject to the sanction acted with substantial justification or that other circumstances make the imposition of the sanction unjust.</p>","text":"The court shall impose a monetary sanction under Chapter 7 (commencing with Section 2023.010) against any party, person, or attorney who unsuccessfully makes or opposes a motion to augment or amend expert witness information, unless it finds that the one subject to the sanction acted with substantial justification or that other circumstances make the imposition of the sanction unjust.","otherVersions":[],"url":"https://blackletter.si/code-of-civil-procedure/motion-to-augment-or-amend-expert-witness-list-or-2034-630","source":"California Legislative Information bulk export (pubinfo)"}