Rule 1103 Title

This set of rules has an official name: the Washington Rules of Evidence. If you see "ER" in a court document or legal paper in Washington State, that abbreviation refers to these rules.

You might see something written like "ER 401" or "ER 802" in court filings. That just means the person is pointing to a specific rule within this set. Knowing this helps you understand what lawyers and judges are referring to when they mention "ER" in a Washington court case.