Washington Code > Chapter 20.01 > § 20.01.920 Washington Code 20.01.920 – Effective date — 1959 c 139 Current as of: 2023 | Check for updates | Other versions The effective date of this chapter shall be January 1, 1960. [ 1959 c 139 § 50.] Ask a business law question, get an answer ASAP!Thousands of highly rated, verified business lawyers.Click here to chat with a lawyer about your rights. Previous sectionNext section Chapter 20.01 Contents