Washington state constitution
Article XVI
Section 6

Notwithstanding the provisions of Article VIII, sections 5 and 7 and Article XII, section 9, or any other section or article of the Constitution of the state of Washington, the moneys of the permanent funds established for any of the institutions of higher education in this state may be invested as authorized by law. Without limitation, this shall include the authority to invest permanent funds held for the benefit of institutions of higher education in stocks or bonds issued by any association, company, or corporation if authorized by law.