{"data":{"id":"us-wa/rcw-19.40.902","jurisdiction":"us-wa","citation":"RCW 19.40.902","heading":"Supplementary provisions.","body":"Unless displaced by the provisions of this chapter, the principles of law and equity, including the law merchant and the law relating to principal and agent, estoppel, laches, fraud, misrepresentation, duress, coercion, mistake, insolvency, or other validating or invalidating cause, supplement its provisions.","path":["Title 19","Chapter 19.40"],"source_url":"https://app.leg.wa.gov/rcw/default.aspx?cite=19.40.902","current_through":"July 15, 2026","vintage":"","retrieved_at":"2026-09-06T01:27:20Z","sha256":"a589081201c06fb2552d26e3c339e57b458fa0cd32eaeff1b6a4723bdb316fae","source_id":"us-wa","stale":false,"prev":"us-wa/rcw-19.40.900","next":"us-wa/rcw-19.40.903"},"notice":"GroundRules: Original legal text. Not legal advice."}