Amending or Supplementing Pleadings (CA)

Summary

This practice note discusses procedures for amending or supplementing a pleading before trial in a civil action in California superior court. It covers the distinction between amended and supplemental pleadings, the circumstances under which a pleading may be amended as a matter of course and the circumstances when leave to amend is required, the procedure for moving for leave to amend, the rules governing whether an amendment relates back to the date of the original pleading, and requirements and procedures for supplemental pleadings.